Specs from the makers' own documentation Battery compatibility built in UK retailer prices, updated daily 25+ years of trade experience
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18V XR · Brushless
DCN660 Second fix nailer No product photo yet
Second Fix Nailers · DeWalt 18V XR

DeWalt DCN660N-XJ 18V XR Brushless 16G 20° Angled Second Fix Nailer (Body Only)

2.4kg bare18V1-year warranty

Battery 16 gauge angled second fix nailer for 32 to 63mm finish nails at 20°, with tool-free depth adjustment and jam clearing. DeWalt quotes 48 J drive energy.

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32mm
Shortest nail
63mm
Longest nail
110nails
Magazine
2.4kg
Weight (bare)

Where it sits among 16G second fix nailers

Scaled against the 13 second fix nailers that take 16G nails we list, so other sizes aren't in the mix. Not a score: bigger isn't always better for your job.

Longest nail63mm
63mm lowestThis onehighest 65mmHiKOKI NT1865DMB
Magazine110nails
100nails lowestHiKOKI NT1865DMBhighest 110nailsThis one
Weight (bare)2.4kg
2.4kg lightestThis oneheaviest 3.1kgMakita DBN600
Noise (LpA)83dB(A)
81dB(A) lowestHiKOKI NT1865DMBhighest 93dB(A)Makita GF600SE
Compare it with: + Makita DBN610 + Bosch GNH18V-64-3 + Milwaukee M18 FN16GA + HiKOKI NT1865DMB

Full specs

From DeWalt's own documentation. Checked 04/10/2026. Report a spec error ›

Nails It Takes

TypeSecond fix
Nail gauge16G
Nail diameter1.6mm
Nail angle20°
Shortest nail32 mm
Longest nail63 mm
Magazine110 nails

Power & Motor

DriveBattery
MechanismMechanical (gas-free), brushless motor
Voltage18V
MotorBrushless

Firing & Features

Firing modesSequential and contact
Firing rateup to 4 nails per second (bump mode)
Tool-free depth adjust✓ Yes
Dry-fire lockout✓ Yes
Tool-free jam release✓ Yes
No-mar tip✓ Yes

Physical & Build

Weight (bare)2.4 kg
Weight (with battery)3.01 kg
LED work light✓ Yes
Noise level83 dB(A) LpA / 94 dB(A) LwA
Vibration (nailing)2.5 m/s²

Powered by DeWalt 18V XR · 12

All 12 batteries that fit this tool, smallest first. Kits and chargers ›

DCBP034 1.7Ah · 30.6Wh 0.32kg 2.72kg from £78.95at Tooled Up + £5.95 delivery View at Tooled Up ›
DCB183 2.0Ah · 36Wh 0.4kg 2.8kg from £44.95at Tooled Up + £5.95 delivery View at Tooled Up ›
DCBP318 3.5Ah · 63Wh 0.58kg 2.98kg from £99.95at Tooled Up + £5.95 delivery View at Tooled Up ›
DCB182 4.0Ah · 72Wh 0.61kg 3.01kg from £49.95at Tooled Up + £5.95 delivery View at Tooled Up ›
DCB184 5.0Ah · 90Wh 0.62kg 3.02kg from £59.95at Tooled Up + £5.95 delivery View at Tooled Up ›
DCB184B 5.0Ah · 90Wh 0.62kg 3.02kg No retailer price yet About this battery ›
DCBP518 5.0Ah · 90Wh 0.75kg 3.15kg from £122.95at Tooled Up + £5.95 delivery View at Tooled Up ›
DCB546 6.0Ah · 108Wh · via DeWalt 18V/54V FlexVolt 1.08kg 3.48kg from £99.95at Tooled Up + £5.95 delivery View at Tooled Up ›

Tool weight worked out by adding each pack's weight to the bare tool, using the makers' figures. The maker's own with-battery figure can differ slightly. We may earn a commission on retailer links.

Warranty · 1yr

1 year on this toolDeWalt's longer cover doesn't apply to this kind of tool, so there's nothing to register.

DeWalt's warranty covers manufacturing defects. Check the maker's site for the current terms.

Warranty terms are set by the maker and can change. Always confirm current cover on their site before you buy.

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