I’m your friendly neighborhood tool enthusiast, and today we’re diving into a head-to-head comparison of two fantastic Dewalt nailers: the DCN660 and the DCN680.
Quick Verdict:
The DCN660 is the 16-gauge heavy-hitter built for baseboards, crown molding, and substantial trim where holding power matters. The DCN680 is the 18-gauge precision tool—lighter, more maneuverable, and ideal for delicate trim, paneling, and overhead work. Choose the DCN660 for power and versatility; choose the DCN680 for finesse and all-day comfort. If you do both heavy and light trim work, you need both in your arsenal.
Buy DCN680 From Amazon At The Best Price Today
Buy DCN660 From Amazon At The Best Price Today
DeWalt DCN660 vs DCN680: Why These Two Nailers Matter
After years of running trim crews, renovating historic homes, and knocking out weekend DIY projects, I’ve developed a love-hate relationship with cordless finish nailers. Corded and pneumatic tools have their place, but the freedom of a battery-powered nailer—no compressor, no hose, no tripping over cords—is unbeatable on most job sites.
DeWalt’s 20V MAX platform dominates the cordless finish nailer market, and two models stand out as the most debated: the DCN660 (16-gauge angled finish nailer) and the DCN680 (18-gauge brad nailer). These aren’t interchangeable tools.
They serve different purposes, use different fasteners, and deliver different results. I’ve driven thousands of nails through both, from delicate cabinet trim to beefy baseboards in commercial spaces. This comparison comes from real job site experience, not catalog browsing.
DeWalt DCN660 vs DCN680: Gauge, Nail Size, and Fastener Fundamentals
DCN660: The 16-Gauge Powerhouse
The DCN660 drives 16-gauge finish nails ranging from 1-1/4 inches to 2-1/2 inches in length. The 16-gauge nail is thicker—roughly 0.0625 inches in diameter—and has a T-head design that provides significantly more holding power than an 18-gauge brad.
When you’re installing baseboards, crown molding, door and window casings, or substantial trim that needs to stay put through seasonal expansion and contraction, the 16-gauge is the standard.
I’ve used the DCN660 to install 7-inch baseboards in a commercial office buildout, and the holding power was confidence-inspiring.
The nails sit flush with the surface, fill easily with putty, and don’t pull out when the lumber shrinks in winter. The 16-gauge nail also has enough shear strength to handle trim that gets bumped—like chair rails or wainscoting in high-traffic areas.
The DCN660’s magazine handles nails up to 2-1/2 inches, which is critical for crown molding where you need to bite through the molding, a layer of adhesive, and into solid framing behind.
I’ve tried 18-gauge brads on crown before, and they simply don’t have the purchase in hardwood crowns or when there’s a gap between the molding and the framing.
DCN680: The 18-Gauge Precision Tool
The DCN680 drives 18-gauge brad nails from 5/8 inch to 2 inches in length. The 18-gauge brad is thinner—about 0.0475 inches in diameter—and leaves a smaller hole that’s easier to hide.
When you’re working with delicate trim, pre-finished cabinetry, paneling, or thin stock that splits easily, the 18-gauge brad is your friend.
I’ve used the DCN680 extensively for cabinet face frames, shoe molding, quarter-round, picture frame assembly, and decorative trim where the fastener hole needs to disappear.
The smaller diameter means less wood displacement, so you’re far less likely to split thin or brittle material.
I’ve driven 18-gauge brads into 1/4-inch plywood edge banding without a single blowout—something I’d never attempt with a 16-gauge nailer.
The downside? 18-gauge brads don’t have the holding power of 16-gauge finish nails. I’ve seen shoe molding pop loose when installed with brads alone, especially if the subfloor flexes or the temperature swings dramatically. For anything structural or load-bearing, the 18-gauge is insufficient.
Bottom line on fasteners: The DCN660 and DCN680 aren’t competitors—they’re complementary. The 16-gauge is for holding power; the 18-gauge is for finesse and minimal visibility.
DeWalt DCN660 vs DCN680: Magazine Capacity and Workflow Efficiency
DCN660: 20-Nail Magazine for Big Jobs
The DCN660 carries 20 nails in its angled magazine. That extra capacity matters when you’re running a long wall of baseboard or crown. Fewer reloads means fewer interruptions, and on a production trim crew, those interruptions add up to real money.
I’ve timed myself on a 40-foot wall of baseboard. With the DCN660, I reloaded twice. With an older 18-gauge nailer (different brand, 15-nail capacity), I reloaded four times.
The difference isn’t dramatic for a single room, but over a whole house or commercial space, it matters. The 20-nail magazine also means you’re less likely to run dry mid-sequence when you’re in a rhythm.
The magazine is rear-loading with a simple pull-back follower. In dusty conditions, I’ve had the follower track get gritty, but a quick wipe with a rag clears it.
The angle of the magazine—16 degrees—keeps the tool compact and allows you to get into corners more easily than a straight magazine design.
DCN680: 18-Nail Magazine for Mobility
The DCN680 holds 18 nails in its magazine. The slightly lower capacity is a trade-off for the tool’s lighter weight and more compact profile. For smaller projects, the difference is negligible. For production work, you’ll reload slightly more often.
The 18-nail capacity hasn’t been a bottleneck in my experience because the DCN680 excels at tasks that don’t require long, continuous nailing sequences.
Cabinet trim, paneling, and decorative work involve more measuring, cutting, and fitting than rapid-fire nailing. The magazine is also rear-loading with a smooth follower action that I’ve found more reliable in dusty environments than the DCN660’s.
Workflow reality: If you’re a trim carpenter doing whole-house installs, the DCN660’s extra two nails per load add up. If you’re a DIYer or a pro doing mixed tasks, the DCN680’s 18-nail capacity is perfectly adequate.
DeWalt DCN660 vs DCN680: Weight, Balance, and All-Day Comfort
DCN660: 6 Pounds of Substance
At 6 pounds bare tool (plus battery weight), the DCN660 is noticeably heavier than the DCN680. The weight comes from the larger magazine mechanism, the beefier drive system needed for 16-gauge nails, and the more robust nosepiece.
It’s not back-breaking, but after a day of overhead crown molding installation, you feel it.
The balance point sits slightly forward of the grip, which makes sense given the angled magazine. The rubber overmold on the handle is aggressive and provides good grip even with dusty gloves.
The secondary grip area on the magazine body is useful for stabilizing the tool when you’re shooting at awkward angles.
I’ve used the DCN660 for 8-hour trim days, and the weight becomes noticeable by hour six. It’s manageable, but if you’re doing a lot of overhead work—like crown on 10-foot ceilings or soffit trim—you’ll appreciate the lighter DCN680 for those applications.
DCN680: 5.3 Pounds of Agility
At 5.3 pounds bare tool, the DCN680 is the lightweight champion. That 0.7-pound difference doesn’t sound like much on paper, but in practice, it’s the difference between finishing a day strong and fighting fatigue.
The lighter weight makes the DCN680 exceptional for overhead work, ladder work, and tasks where you’re holding the tool at arm’s length.
The balance is more neutral than the DCN660, with the weight centered closer to the grip. The handle is slightly slimmer, which is comfortable for smaller hands. The rubber overmold is similar in texture but covers less surface area.
I’ve used the DCN680 for installing crown on a vaulted ceiling where I was working from a 12-foot ladder with the tool extended overhead. The lighter weight made a genuine difference in control and fatigue.
For cabinet installers who work at various heights and angles all day, the DCN680 is the clear ergonomic winner.
Real-world comfort note: Both tools benefit from using compact batteries (2.0Ah or 3.0Ah) instead of the bulky 5.0Ah or 6.0Ah packs. The weight savings of a smaller battery are more noticeable on the DCN680 because the tool itself is lighter, but the DCN660 also handles better with a compact battery unless you’re doing massive production work.
DeWalt DCN660 vs DCN680: Nail Angle and Access in Tight Spaces
DCN660: 16-Degree Angled Magazine
The DCN660 features a 16-degree angled magazine. This angle is the industry standard for 16-gauge finish nailers and offers a few practical advantages.
First, the angled design keeps the tool body more compact, allowing you to get closer to walls and into corners.
Second, the 16-degree angle provides good access when nailing into the “field” of crown molding—where the nail needs to go through the molding at an angle and into the framing behind.
I’ve found the 16-degree angle versatile for most trim applications.
It works well for baseboard where you’re shooting downward into the plate, for crown where you’re shooting at a compound angle, and for casing where you’re shooting straight through the jamb.
The slight angle doesn’t complicate the nailing process, and the tool’s nosepiece is shaped to help you register the nail location accurately.
DCN680: 15-Degree Angled Magazine
The DCN680 uses a 15-degree angled magazine—just one degree steeper than the DCN660. In practice, this difference is barely perceptible.
The 15-degree angle is common for 18-gauge brad nailers and provides similar benefits: compact tool profile and good access in tight spots.
Where the DCN680’s angle shines is in delicate applications where you’re working close to edges or in confined spaces like cabinet interiors.
The slightly steeper angle, combined with the tool’s lighter weight, makes it easier to maneuver when you’re inverted under a cabinet or reaching into a tight corner.
Angle reality check: The 1-degree difference between 16 and 15 degrees is not a deciding factor for most users. Both angles are industry-standard and perform similarly. The more significant difference is the gauge of the nail and the physical size of the tool.
DeWalt DCN660 vs DCN680: Depth Adjustment and Finish Quality
Tool-Free Depth Adjustment on Both
Both the DCN660 and DCN680 feature tool-free depth adjustment—a dial or wheel near the trigger that allows you to control how deep the nail sits. This is a critical feature for finish work because nail head visibility ruins the appearance of trim.
On the DCN660, the depth adjustment wheel is located on the left side of the tool body (for right-handed users). It rotates smoothly with detents that give you tactile feedback.
I’ve found the adjustment range sufficient for everything from soft pine baseboards (where you need shallow depth to avoid blowing through) to hard oak crown (where you need deeper setting to bury the head).
The tool-free design means you can tweak depth on the fly without hunting for a wrench.
On the DCN680, the depth adjustment is similarly positioned and operates identically. The range is calibrated for the lighter 18-gauge brads, which require less driving force.
I’ve used it to set brads flush with the surface for paint-grade work and slightly below the surface for stain-grade work where putty filling is required.
Depth consistency: Both tools deliver consistent depth once dialed in. The brushless motor and flywheel drive system provide reliable power, so you’re not fighting depth variations caused by battery voltage drop.
I’ve run both tools on 2.0Ah batteries near depletion and still gotten consistent depth—something older cordless nailers struggled with.
DeWalt DCN660 vs DCN680: Battery Compatibility and Runtime
20V MAX Platform Flexibility
Both the DCN660 and DCN680 run on DeWalt’s 20V MAX battery platform.
This is a massive advantage if you’re already invested in DeWalt tools. Any battery—from the compact 1.3Ah to the massive 12.0Ah FLEXVOLT—will power these nailers.
Runtime reality: Finish nailers are surprisingly efficient. Unlike recip saws or circular saws that draw continuous high current, nailers use power in bursts.
The brushless motor spins up a flywheel, and the flywheel’s momentum drives the nail. This means even a 2.0Ah battery will last for hundreds of nails.
I’ve tracked my usage:
- DCN660 with 2.0Ah battery: Approximately 400–500 nails per charge in soft pine
- DCN680 with 2.0Ah battery: Approximately 500–600 nails per charge (brads require less energy to drive)
For a typical room of trim (base, crown, casing), a single 2.0Ah battery handles the job. For a whole house, I carry two batteries and swap at lunch.
Battery weight consideration: The DCN660’s heavier body pairs better with 5.0Ah batteries for balance, but the weight adds up.
The DCN680 feels best with 2.0Ah or 3.0Ah batteries for maximum agility. I rarely use 5.0Ah+ batteries on either tool unless I’m doing production work far from a charger.
DeWalt DCN660 vs DCN680: Drive Mechanism and Performance
Flywheel Drive System
Both nailers use DeWalt’s flywheel drive system rather than a traditional piston-and-cylinder pneumatic design. The brushless motor spins a weighted flywheel to high speed.
When you pull the trigger, the flywheel’s energy is transferred to the driver blade, which strikes the nail. This system is quieter than pneumatics, requires no compressor, and delivers consistent driving force.
Performance in the field:
- DCN660: Drives 16-gauge nails flush into hard maple, oak, and engineered trim without hesitation. I’ve buried 2-1/2-inch nails through 3/4-inch MDF crown into solid oak blocking with no issues. The tool rarely misfires or leaves nails proud.
- DCN680: Drives 18-gauge brads cleanly into delicate materials without blowout. I’ve used it on 1/4-inch plywood edge banding, pre-finished cherry, and MDF paneling. The lighter brads don’t split thin stock, and the drive depth is consistent.
Misfire rate: In thousands of nails, both tools have misfired less than 1% of the time. Misfires usually occur when:
- The battery is near depletion
- The nail is improperly seated in the magazine
- The tool isn’t fully depressed against the workpiece (safety mechanism)
Sequential vs. bump fire: Both tools offer sequential mode (depress nose, pull trigger for each nail) and bump fire mode (hold trigger, bump nose for rapid nailing).
I use sequential for precision work and bump fire for production baseboard where speed matters.
The DCN660’s bump fire feels slightly more aggressive due to the heavier nail; the DCN680’s bump fire is smoother and faster.
DeWalt DCN660 vs DCN680: LED Lighting and Visibility
DCN660: No Dedicated LED
The DCN660 does not include an LED worklight. This is a minor annoyance when you’re working in dimly lit rooms, closets, or behind cabinets.
The flywheel system is quieter than a pneumatic, but the lack of lighting means you need to position yourself carefully or use a headlamp for precision work.
DCN680: LED Worklight Included
The DCN680 includes an LED worklight positioned near the nosepiece. It illuminates the nailing area, making it easier to see exactly where the brad will enter.
This is genuinely useful for cabinet work, closet trim, and any application where you’re working in shadow.
Why the difference? DeWalt added the LED to the DCN680 as a newer design feature. The DCN660 is an older model (though still current) and lacks this update.
If you do a lot of interior work in existing homes with poor lighting, the DCN680’s LED is a meaningful advantage.
DeWalt DCN660 vs DCN680: Nosepiece Design and No-Mar Tips
DCN660: Robust Nose for Heavy Trim
The DCN660 has a metal nosepiece with a no-mar tip that snaps over it. The nose is substantial and designed to withstand the impact of being pressed against hardwood trim.
The no-mar tip prevents scratching pre-finished material, but I’ve found it can wear down over time with heavy use. Replacement tips are available and inexpensive.
The nosepiece opening is sized for 16-gauge nails and provides good visibility of the nail exit point. I’ve used it to toenail baseboard into studs where the angle is awkward, and the nose design helps me register the tool accurately.
DCN680: Precision Nose for Delicate Work
The DCN680 has a slimmer nosepiece with a smaller no-mar tip. The reduced size allows you to get closer to edges and into tighter spots. For cabinet face frames, where you’re nailing 1/4-inch from an edge, the smaller nose is less likely to slip off the narrow stock.
The no-mar tip is also more delicate and can tear if you’re rough with it. I keep a spare tip in my bag because I’ve damaged the original by pressing too hard against rough-sawn lumber.
DeWalt DCN660 vs DCN680: Jam Clearing and Maintenance
Tool-Free Jam Clearing on Both
Both nailers feature tool-free jam clearing.
A lever on the nosepiece opens the drive track, allowing you to remove bent or stuck nails. Jams are rare with both tools if you use quality nails and don’t try to drive into knots or metal.
Jam frequency in my experience:
- DCN660: Jams approximately once per 1,000 nails, usually when I hit a hidden knot or overdrove into hardwood
- DCN680: Jams slightly less frequently due to the thinner brads, but thin brads can bend if the tool isn’t held square to the surface
Maintenance: Both tools require minimal maintenance. I blow out the magazine and drive track with compressed air weekly, keep the no-mar tips clean, and avoid storing them in damp conditions.
The brushless motors eliminate brush replacement, which is a long-term cost savings.
DeWalt DCN660 vs DCN680: Price and Value Comparison
DCN660: Higher Price for Greater Capability
The DCN660 typically costs $250–$320 as a bare tool and $350–$450 in kit form with battery and charger. The higher price reflects the heavier-duty construction, larger magazine capacity, and 16-gauge capability.
Value assessment: For professional trim carpenters, the DCN660 is worth the investment. The ability to handle 16-gauge nails up to 2-1/2 inches means you can tackle any trim application without reaching for a pneumatic gun. The tool pays for itself in time saved on compressor setup and hose management.
DCN680: Budget-Friendly Precision
The DCN680 typically costs $200–$280 as a bare tool and $300–$380 in kit form. The lower price makes it attractive for DIYers, hobbyists, and pros who primarily need 18-gauge capability.
Value assessment: For cabinet installers, paneling specialists, and DIYers, the DCN680 offers excellent value. It handles 90% of finish nailing tasks at a lower price point, and the lighter weight is a genuine quality-of-life improvement.
Kit contents note: The DCN660 kit often includes a 2.0Ah or 4.0Ah battery, while the DCN680 kit may include a 2.0Ah battery. Factor battery costs into your total investment if you don’t already own DeWalt 20V MAX batteries.
DeWalt DCN660 vs DCN680: Best Applications and Use Cases
When to Choose the DCN660
- Baseboard installation (especially tall profiles and hardwood)
- Crown molding (where 2-inch+ nails are needed for secure attachment)
- Door and window casings (holding power for heavy jambs)
- Chair rails and wainscoting (high-traffic areas where trim gets bumped)
- Stair skirt boards and risers (structural trim that needs strength)
- Exterior trim (where weather exposure demands stronger fasteners)
- Commercial work (code requirements often specify 16-gauge minimum)
When to Choose the DCN680
- Cabinet face frames and trim (delicate work where nail holes must hide)
- Shoe molding and quarter-round (thin stock that splits easily)
- Paneling and wainscoting panels (visible fasteners must be minimal)
- Picture frame assembly (small nails, precision placement)
- Decorative trim and appliqués (lightweight materials, minimal holding needs)
- Overhead crown in residential spaces (lightweight for comfort)
- Pre-finished materials (smaller holes are easier to touch up)
DeWalt DCN660 vs DCN680: Noise and Job Site Considerations
Noise Levels
Both nailers are significantly quieter than pneumatic nailers. There’s no compressor running, no air exhaust blast, and no hose slap. The flywheel system produces a sharp “thwack” sound that’s comparable to a stapler.
Subjective noise comparison:
- DCN660: Slightly louder due to the heavier nail and more aggressive drive. Still hearing-safe without protection for occasional use, but I wear earplugs for all-day use.
- DCN680: Quieter due to the lighter brad. The sound is less sharp and more muffled.
Job site advantage: The cordless design means you can work early mornings, late evenings, or in occupied buildings without the compressor noise disturbing residents or neighbors. I’ve done trim work in occupied apartments where pneumatic tools would have been unacceptable.
DeWalt DCN660 vs DCN680: Durability and Long-Term Reliability
DCN660: Built for the Long Haul
After 3+ years of professional use, my DCN660 shows cosmetic wear but functions identically to day one. The magazine follower is still tight, the depth adjustment detents are crisp, and the drive track shows minimal wear. The metal nosepiece has taken a beating without deforming.
The only maintenance has been replacing the no-mar tip twice and cleaning the magazine track regularly. The brushless motor shows no signs of degradation, and battery contacts remain clean and tight.
DCN680: Lightweight but Not Fragile
My DCN680 is 2 years old and has seen heavy cabinet installation use. The lighter construction doesn’t feel flimsy—the tool is well-engineered. The LED still works, the magazine follower is smooth, and the depth adjustment functions perfectly.
The slimmer nosepiece has taken more cosmetic damage than the DCN660’s, but this hasn’t affected performance. The no-mar tip is more delicate and requires gentler handling, which is a fair trade-off for the precision it offers.
DeWalt DCN660 vs DCN680: The Final Verdict
My Personal Recommendation
After driving thousands of nails through both tools on real projects, here’s my honest assessment:
If you can only own one finish nailer, buy the DCN660. The 16-gauge capability covers more applications, and you can always use it for lighter work by adjusting the depth and choosing shorter nails. It’s the more versatile single-tool solution.
However, if your work is primarily cabinets, paneling, delicate trim, or overhead finish work, the DCN680 is the better daily driver. The lighter weight, smaller holes, and LED light make it more enjoyable to use for those specific tasks.
My actual setup: I carry both. The DCN660 lives in my trim bag for base, crown, and casing. The DCN680 stays in my cabinet installation kit for face frames, scribe, and light trim. They’re not interchangeable—they’re complementary tools that solve different problems.
For DIYers and Homeowners
If you’re building out a home workshop and need a first finish nailer, the DCN680 is the smarter starting point. It’s less expensive, lighter, and handles most household trim tasks. You can always add the DCN660 later when you tackle bigger projects.
For Professional Trim Carpenters
You need both. The DCN660 for structural trim and the DCN680 for detail work. Trying to use one for the other’s purpose leads to frustration: 16-gauge nails blow out delicate stock, and 18-gauge brads don’t hold heavy trim.
DeWalt DCN660 vs DCN680: Spec Comparison Table
| Feature | DeWalt DCN660 | DeWalt DCN680 |
|---|---|---|
| Nail Gauge | 16-gauge | 18-gauge |
| Nail Length Range | 1-1/4″ to 2-1/2″ | 5/8″ to 2″ |
| Magazine Capacity | 20 nails | 18 nails |
| Nail Angle | 16 degrees | 15 degrees |
| Weight (bare tool) | ~6.0 lbs | ~5.3 lbs |
| Battery Platform | 20V MAX | 20V MAX |
| Motor Type | Brushless | Brushless |
| Depth Adjustment | Tool-free | Tool-free |
| LED Worklight | No | Yes |
| Drive System | Flywheel | Flywheel |
| Firing Modes | Sequential / Bump | Sequential / Bump |
| Tool-Free Jam Clear | Yes | Yes |
| Bare Tool Price | $250–$320 | $200–$280 |
| Best For | Heavy trim, base, crown | Delicate trim, cabinets, panels |
DeWalt DCN660 vs DCN680: Frequently Asked Questions
Can I use the DCN680 for baseboards?
Yes, but it’s not ideal. 18-gauge brads lack the holding power for tall baseboards or high-traffic areas. Use the DCN660 for baseboards that need to stay put.
Can I use the DCN660 for cabinets?
Yes, but carefully. The 16-gauge nails are thicker and more likely to split delicate cabinet stock or leave visible holes. Use the DCN680 for cabinet face frames.
Do both tools use the same batteries?
Yes. Both run on all DeWalt 20V MAX batteries, including FLEXVOLT batteries in 20V mode.
Which is better for crown molding?
The DCN660 is better for heavy crown molding that requires long nails and strong holding power. The DCN680 works for lightweight residential crown in low-stress applications.
Can I use other brands’ nails in these tools?
Yes, both accept standard 16-gauge and 18-gauge nails from brands like Bostitch, Senco, Porter-Cable, and generic suppliers. Stick to quality nails to avoid jams.
Which tool is newer?
The DCN680 is the newer design, featuring the LED light and slightly refined ergonomics. The DCN660 is an older but still current model.
Do I need a compressor with these?
No. Both are fully cordless and battery-powered. No compressor, air hose, or gas cartridges required.
How long do batteries last?
A 2.0Ah battery drives 400–600 nails per charge. Larger batteries last proportionally longer. For most trim jobs, a single compact battery suffices.
Are these tools worth the price compared to pneumatic nailers?
For mobility and convenience, absolutely. For pure cost, pneumatic nailers are cheaper upfront but require a compressor and hose. If you already own a compressor, pneumatics are more economical. If you value freedom of movement, the cordless DeWalt tools are worth the premium.
Can I use these for hardwoods like oak and maple?
Yes. Both tools drive nails effectively into hardwoods. Adjust the depth setting to prevent overdriving, and use sharp, quality nails designed for hardwoods.
DeWalt DCN660 vs DCN680: Conclusion
The DeWalt DCN660 vs DCN680 debate isn’t about which tool is “better”—it’s about which tool fits your work. The DCN660 is the powerful, versatile workhorse for substantial trim and structural applications. The DCN680 is the agile, precise specialist for delicate work and all-day comfort.
Both represent the best of DeWalt’s cordless finish nailing technology. Both are reliable, efficient, and built for professional use. Your choice depends on whether your projects demand holding power or finesse—and for most serious woodworkers, the answer is eventually both.
Frequently Asked Questions (FAQs)
What is the main difference between DeWalt DCN660 and DCN680?
The DeWalt DCN660 is a 16-gauge angled finish nailer designed for heavy trim work like baseboards, crown molding, and door casings where holding power is critical. The DeWalt DCN680 is an 18-gauge brad nailer built for delicate work like cabinet trim, paneling, and decorative applications where smaller nail holes and precision matter. The DCN660 uses thicker 16-gauge finish nails up to 2-1/2 inches; the DCN680 uses thinner 18-gauge brad nails up to 2 inches. Both run on the DeWalt 20V MAX battery platform and feature brushless motors with tool-free depth adjustment.
Which is better: DCN660 or DCN680?
It depends entirely on your application. Choose the DCN660 if you need holding power and versatility for structural trim, heavy baseboards, crown molding, and commercial work. Choose the DCN680 if you prioritize lightweight maneuverability, precision, and minimal nail visibility for cabinets, paneling, shoe molding, and delicate trim. For professional trim carpenters who do both heavy and light work, both tools are essential—they serve completely different purposes and are not interchangeable.
Can I use the DCN680 for baseboards?
Technically yes, but it’s not recommended for most baseboard applications. The 18-gauge brads from the DCN680 lack the shear strength and holding power to secure tall or heavy baseboards long-term, especially in high-traffic areas or where seasonal expansion and contraction occur. Baseboards installed with brads alone can loosen, pull away from the wall, or develop gaps over time. For baseboards, the DCN660’s 16-gauge finish nails are the industry standard and provide the durability you need.
Can I use the DCN660 for cabinets and delicate trim?
Yes, but with caution. The DCN660’s 16-gauge nails are thicker and more likely to split thin stock, blow out delicate edges, or leave visible holes in pre-finished materials. If you must use the DCN660 for cabinet work, choose the shortest nail possible (1-1/4 inch), adjust the depth to barely bury the head, and test on scrap material first. For dedicated cabinet and furniture work, the DCN680’s 18-gauge brads are the safer, more appropriate choice.
What gauge nail does the DCN660 use?
The DeWalt DCN660 uses 16-gauge finish nails. These are 0.0625 inches in diameter and feature a T-head design that provides significantly more holding power than 18-gauge brads. The DCN660 accepts 16-gauge finish nails from 1-1/4 inches to 2-1/2 inches in length, making it suitable for baseboards, crown molding, door casings, chair rails, and other substantial trim applications.
What gauge nail does the DCN680 use?
The DeWalt DCN680 uses 18-gauge brad nails. These are 0.0475 inches in diameter—noticeably thinner than 16-gauge nails—and leave a smaller hole that’s easier to hide with putty or touch-up paint. The DCN680 accepts 18-gauge brad nails from 5/8 inch to 2 inches in length. The smaller diameter reduces wood splitting and makes this tool ideal for cabinet face frames, paneling, shoe molding, quarter-round, and decorative trim.
Is the DCN660 or DCN680 better for crown molding?
For heavy crown molding—especially hardwood crowns, large profiles, or commercial-grade installations—the DCN660 is the better choice. Crown molding requires nails long enough to penetrate through the molding, any adhesive layer, and into solid framing behind. The DCN660’s ability to drive 2-inch to 2-1/2-inch 16-gauge nails provides the holding power and security that crown molding demands. For lightweight residential crown in low-stress applications, the DCN680 can work, but it may not provide long-term durability.
How much does the DCN660 weigh compared to the DCN680?
- DeWalt DCN660: Approximately 6.0 pounds (bare tool)
- DeWalt DCN680: Approximately 5.3 pounds (bare tool)
The DCN680 is about 0.7 pounds lighter, which makes a genuine difference during overhead work, ladder work, and all-day trim installation. The DCN660’s extra weight comes from its larger magazine, beefier drive system for 16-gauge nails, and more robust nosepiece. For extended overhead crown molding installation, the DCN680’s lighter weight reduces fatigue significantly.
What is the magazine capacity of DCN660 vs DCN680?
- DCN660:20-nail magazine capacity
- DCN680:18-nail magazine capacity
The DCN660 holds 2 more nails per load, which translates to fewer reloads on large production jobs. For continuous baseboard or crown installation, the extra capacity improves workflow efficiency. The DCN680’s slightly smaller capacity is rarely a bottleneck for cabinet work, paneling, and detail-oriented tasks where measuring and fitting take more time than nailing.
Do the DCN660 and DCN680 use the same batteries?
Yes. Both the DCN660 and DCN680 run on the DeWalt 20V MAX battery platform and are compatible with all 20V MAX batteries from 1.3Ah to 12.0Ah, including FLEXVOLT batteries operating in 20V mode. If you already own DeWalt 20V MAX tools, you can share batteries between your drill, impact driver, circular saw, and either nailer. Both tools are also compatible with DeWalt’s Powerstack compact batteries for reduced weight.
What is the best battery size for DCN660 and DCN680?
For both nailers, compact batteries (2.0Ah or 3.0Ah) are the sweet spot for most users. Finish nailers draw power in short bursts rather than continuously, so even a 2.0Ah battery delivers 400–600 nails per charge. Larger batteries (5.0Ah+) extend runtime but add unnecessary weight to these already substantial tools. For production trim crews doing whole-house installs, 4.0Ah or 5.0Ah batteries reduce swap frequency. For cabinet installers and DIYers, 2.0Ah batteries keep the tools light and agile.
Does the DCN660 have an LED light?
No. The DeWalt DCN660 does not include an LED worklight. This is a notable omission for dimly lit work areas like closets, behind cabinets, or interior rooms without temporary lighting. The DCN680 does include an LED light positioned near the nosepiece, which illuminates the nailing area and improves accuracy in low-light conditions. If you frequently work in poorly lit spaces, the DCN680’s LED is a meaningful advantage.
Does the DCN680 have an LED light?
Yes. The DeWalt DCN680 includes an LED worklight that activates when you depress the safety nosepiece. The light illuminates the exact nailing location, making it easier to place brads precisely on cabinet face frames, paneling edges, and delicate trim. This feature is especially valuable for cabinet installers, finish carpenters working in existing homes, and anyone who values nail placement accuracy.
What is the nail angle on DCN660 vs DCN680?
- DCN660:16-degree angled magazine
- DCN680:15-degree angled magazine
Both are industry-standard angles for their respective nail gauges. The 1-degree difference is negligible in practice. Both angled designs keep the tool body compact and allow access in corners and tight spaces. The 16-degree angle on the DCN660 is the standard for 16-gauge finish nailers, while the 15-degree angle on the DCN680 is common for 18-gauge brad nailers. Neither angle limits your ability to complete standard trim applications.