What's inside
- What “Tool Only” Actually Means for the DCN680B
- Battery and Charger Compatibility: What You Need
- Key Specs and Nail Requirements
- Should You Buy Tool Only? A Decision Matrix
- Cost Per Use and Runtime: A Worked Calculation
- Trim Applications: Where the 18Ga Brad Nailer Excels and Where It Doesn’t
- Durability and Ownership Realities
- What to Buy Alongside the Tool Only
- What “Tool Only” Actually Means for the DCN680B
- Battery and Charger Compatibility: What You Need
- Key Specs and Nail Requirements
- Should You Buy Tool Only? A Decision Matrix
- Cost Per Use and Runtime: A Worked Calculation
- Trim Applications: Where the 18Ga Brad Nailer Excels and Where It Doesn’t
- Durability and Ownership Realities
- What to Buy Alongside the Tool Only
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The DeWalt 20V brad nailer tool only (model DCN680B) includes just the nailer itself in the box — no battery, no charger, and no nails — so you will need a compatible 20V MAX battery, a charger, and 18-gauge brad nails before you can use it.
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Sections
- What “Tool Only” Actually Means for the DCN680B
- Battery and Charger Compatibility: What You Need
- Key Specs and Nail Requirements
- Should You Buy Tool Only? A Decision Matrix
- Cost Per Use and Runtime: A Worked Calculation
- Trim Applications: Where the 18Ga Brad Nailer Excels and Where It Doesn’t
- Durability and Ownership Realities
- What to Buy Alongside the Tool Only
What “Tool Only” Actually Means for the DCN680B
DeWalt sells the DCN680B as a bare tool to keep the cost down for buyers who already own DeWalt 20V MAX batteries. Understanding exactly what is and is not in the package prevents an extra trip to the store or a delayed project start.
What’s in the Box
- DCN680B 20V MAX 18-Gauge Brad Nailer
- Reversible belt hook (usually pre-installed)
- No-mar tip installed on the nose plus one spare no-mar tip
- Hex wrenches for maintenance / jam clearing (stored on tool)
- Tool bag or box varies by retailer bundle — the standard bare tool ships in a cardboard box only, not the DeWalt kit bag or TSTAK case
What Is Not Included
- No 20V MAX battery (any capacity)
- No battery charger
- No brad nails or sample pack
- No safety glasses or hearing protection
If you do not already own DeWalt 20V MAX batteries, factor in the cost of at least one battery and a compatible charger. That is the most common surprise for first-time cordless buyers moving from a pneumatic nailer.
Battery and Charger Compatibility: What You Need
The DCN680B runs on the entire DeWalt 20V MAX battery platform, but not all batteries deliver the same balance of weight and runtime. It does not require FLEXVOLT batteries and will not benefit from them beyond standard 20V MAX operation.
| Battery Model | Capacity | Weight | Estimated Nails Per Charge (1-1/4″ brads in pine) | Best For |
|---|---|---|---|---|
| DCB203 | 2.0Ah Compact | 0.62 lbs | 600 – 750 nails | Light trim, overhead work where low weight matters |
| DCB205 / DCB205G | 5.0Ah XR | 1.4 lbs | 1,400 – 1,700 nails | All-day trim, cabinets, baseboard – best balance |
| DCB206 | 6.0Ah XR | 1.43 lbs | 1,650 – 2,000 nails | Maximum runtime with similar weight to 5.0Ah |
| DCB204 | 4.0Ah Compact | 1.32 lbs | 1,100 – 1,350 nails | Good middle ground if you want more runtime than 2.0Ah |
Any DeWalt 20V MAX charger will work: DCB112 (standard 2A), DCB115 (4A), DCB1104 (4A) or DCB118 (8A fast charger). If you buy a charger separately, the DCB115 is the most common general-purpose choice because it charges a 5.0Ah pack in about 90 minutes without the premium price of a fast charger. DeWalt 12V MAX and FLEXVOLT 60V-only chargers are not compatible.
Tip: If you own DeWalt 20V MAX tools with small 1.5Ah or 2.0Ah batteries from a drill kit, they will power the nailer for small projects, but expect more frequent swaps and slightly less driving power on hardwoods like oak or maple, especially with 2″ brads.
Key Specs and Nail Requirements
The DCN680B is an 18-gauge brad nailer, not a 16-gauge finish nailer or 23-gauge pin nailer. Choosing the wrong gauge is the second most common buying mistake.
| Specification | DeWalt DCN680B (20V Brad Nailer) | DeWalt DCN660B (20V 16Ga Finish Nailer) | Typical Pneumatic 18Ga Brad Nailer |
|---|---|---|---|
| Nail Gauge | 18 gauge | 16 gauge | 18 gauge |
| Nail Length Range | 5/8″ to 2-1/8″ | 1-1/4″ to 2-1/2″ | 3/8″ to 2-1/8″ |
| Magazine Capacity | 110 nails | 110 nails | 100 – 110 nails |
| Tool Weight (bare tool) | 6.0 lbs | 6.5 lbs | 2.3 – 3.0 lbs |
| Tool Height / Length | 11.5″ H x 11.8″ L | 12.5″ H x 12.3″ L | 9.5″ H x 10″ L |
| Firing Modes | Sequential and bump (contact) | Sequential and bump | Sequential and bump (model dependent) |
| Depth Adjustment | Tool-free depth wheel | Tool-free depth wheel | Tool-free or air pressure |
| Jam Clearing | Tool-free latch + nose | Tool-free latch + nose | Tool-free latch |
For trim, use 18-gauge brads from reputable fastener brands. The DCN680B requires standard 18-gauge brads with a slight T-head, not clipped-head or daisy-head. For most interior trim, 1″ to 1-1/4″ brads cover shoe molding and small trim, 1-1/2″ to 2″ handles baseboard, crown, and casing when gluing in addition to nailing. Always match nail length to keep at least 3/4″ penetration into the substrate.
Should You Buy Tool Only? A Decision Matrix
The tool-only option saves money only if you already have the support system. Use this matrix to decide:
| Your Situation | Buy Tool Only (DCN680B)? | Better Alternative | Why |
|---|---|---|---|
| Own 1+ DeWalt 20V MAX batteries (3.0Ah+) and charger | Yes | – | No extra cost, lightest investment, immediate use |
| Own DeWalt 12V MAX or no DeWalt batteries | No | Kit (DCN680D1 or DCN680P1) or starter battery + charger bundle | Tool-only will cost more once you add battery and charger separately |
| Occasional DIY trim (1-2 rooms per year) | Yes if you have batteries | Corded electric or pneumatic + small compressor if you have no batteries | Cordless convenience not worth battery system investment for one job |
| Pro trim carpenter or frequent cabinet work | Yes, plus 5.0Ah or 6.0Ah battery | – | Runtime and portability outweigh extra weight vs pneumatic |
| Need for thicker trim / hardwoods and structural hold | No | DeWalt DCN660 16Ga finish nailer | 18ga brads lack holding power for large crown or hardwood casing alone |
Cost Per Use and Runtime: A Worked Calculation
Cordless cost is easier to justify when you calculate nails per dollar rather than tool price alone.
Assume you use a DCB205 5.0Ah battery that delivers an average of 1,550 brads per charge in softwood trim with 1-1/4″ nails. The battery is rated for roughly 400-500 full charge cycles before noticeable capacity loss. Using 500 cycles as a conservative life:
1,550 nails x 500 cycles = 775,000 nails over battery life. If a DCB205 replacement battery costs in the general market range of $100 to $130, the energy cost per nail is about $0.00013 to $0.00016 — essentially fractions of a cent. Even adding electricity (about $0.02 to charge a 5.0Ah pack), the cordless premium is not in per-nail cost but in initial battery purchase.
Compared to pneumatic: a small quiet compressor plus hose and fittings generally runs $150 to $250 for the support equipment alone, plus setup time and noise. If you already own DeWalt 20V MAX batteries, the cordless brad nailer avoids that support cost entirely. If you own no batteries, buying a tool-only nailer plus a 5.0Ah battery and charger separately generally costs $80 to $130 more than a kitted version that includes them, so a kit is usually cheaper for new platform buyers.
Trim Applications: Where the 18Ga Brad Nailer Excels and Where It Doesn’t
The DCN680B is built for finish work where a small fastener head and minimal wood splitting matter.
Ideal Uses
- Baseboard and shoe molding (with construction adhesive for long runs)
- Crown molding, especially pre-assembled and coped joints where you need to hold pieces while glue sets
- Door and window casing, wainscoting, beadboard, and chair rail
- Cabinet trim, face frames, scribe molding, and light assembly
- Craft work, small furniture, and plywood edge banding
Not Ideal
- Structural trim or load-bearing joints — 18ga has less shear strength; use 15ga or 16ga finish nails or screws
- Hardwood flooring or thick hardwood crown over 3/4″ without adhesive — holding power is insufficient
- Outdoor trim in treated lumber — use stainless steel fasteners and consider 16ga
Switch to sequential mode for precise placement on casing and crown. Use bump mode only for high-volume tacking like beadboard where speed matters, as bump firing increases the risk of double fires or misplacement.
Durability and Ownership Realities
The DCN680B uses a brushless motor and a flywheel-driven driver blade rather than an air piston. This removes compressor maintenance but introduces its own wear points.
What wears first: the driver blade tip and the rubber-like nose cushion dry out or nick after 30,000 to 50,000 nails, the magazine spring weakens if left fully loaded for months, and the belt hook screws loosen with daily carry. The LED work light and depth wheel are low-failure items.
Consumables: 18ga brads, no-mar tips, and eventually a replacement driver blade assembly if you bend it on a jam or hard knot. Keep a spare no-mar tip because a melted or gouged tip will leave black marks on white trim.
Cleaning: Disconnect battery, open the tool-free jam nose, blow out dust with dry air at low pressure, and wipe the magazine track with a dry cloth. Do not oil the mechanism — unlike pneumatic nailers, the DCN680B is designed to run dry and oil attracts dust that causes jams.
Common mistakes that cause misfires or jams:
- Mixing 18ga brads that are slightly out of spec or bent from a damaged box — use straight, collated strips only
- Setting depth too deep for soft pine, which drives heads below the surface and weakens hold; dial back until the head sits just flush
- Firing with low battery — the nailer will stall mid-drive and leave a proud nail; swap batteries rather than forcing a second trigger pull
- Storing with battery installed — increases risk of accidental discharge and drains the battery over weeks
- Not allowing the tool to fully cycle in sequential mode — lift straight off the work, do not drag the nose
For best results, test depth on scrap from the same material before moving to installed trim, and keep fasteners in a dry location. Damp brads corrode lightly and increase jam frequency.
What to Buy Alongside the Tool Only
If you choose tool only, add these before starting a project:
- One DeWalt 20V MAX battery, 4.0Ah minimum for trim work; 5.0Ah or 6.0Ah if you plan continuous use
- Compatible DeWalt 20V MAX charger if you do not own one
- Two lengths of 18-gauge brads: 1-1/4″ for light trim and 2″ for base and casing
- Safety glasses and hearing protection — cordless nailers are quieter than pneumatic but still produce 85-90 dB at the nose
- Wood glue and painter’s tape for holding miters while brads act as clamps
If you are buying into the DeWalt system for the first time, compare the total cost of tool + battery + charger versus the DCN680D1 (1x 2.0Ah) or DCN680P1 (tool + charger) kits sold through DeWalt retailers. Kits usually offer a lower combined price than buying each component separately.