DCF840 Impact Driver

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‹ Impact Drivers

18V XR · Brushless DeWalt DCF840N-XJ 18V XR Brushless Compact Impact Driver (Body Only)

Impact Drivers · DeWalt 18V XR

DeWalt DCF840N-XJ 18V XR Brushless Compact Impact Driver (Body Only)

192Nm1-speed0.88kg bare3 years (with registration)

18V XR brushless compact impact driver. 192Nm, 3200rpm, 4200ipm. Single speed. 129mm long, 0.88kg bare. Bare unit.

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192Nm

Max torque

3,200rpm

Max speed

0.88kg

Weight (bare)

1/4" Hex

Bit holder

Where it sits among impact drivers

Against the 39 impact drivers we list. Not a score: bigger isn't always better for your job.

Max torque192Nm

40Nm lowestMakita DTS141highest 282NmDeWalt DCF860

Impacts per minute4,200

2,700 lowestMakita DTS141highest 6,300Milwaukee M18 FIDRQ

Max speed3,200rpm

2,500rpm lowestMakita DTD156highest 3,900rpmMilwaukee M18 FID3

Weight (bare)0.88kg

0.76kg lightestMakita TD111Dheaviest 1.2kgBosch EXDX 18V-210

Compare it with: + Bosch EXDX 18V-210 + Makita DTD155 + Milwaukee M18 FIDRQ + Einhell TP-CI 18/250-C Li BL

Full specs

From DeWalt's own documentation. Checked 06/10/2026. Report a spec error ›

Performance

Max torque192 Nm

Torque settings1

Speed settings1

No-load speed0–3200

Impacts per minute4,200

MotorBrushless

Impact mechanismStandard

Voltage18V

Bit holder1/4" Hex

Year released2022

Physical & Build

Weight (bare)0.88 kg

Weight (with battery)1.49 kg

LED work light✓ Yes

Belt clip✓ Yes

Noise level91 dB(A) LpA / 102 dB(A) LwA

Vibration16.5 m/s²

The verdictOur take

The DCF840 is a compact single-speed 18V XR brushless driver at a light 0.88kg bare, putting out 192Nm with a fast 3200rpm for quick, repetitive driving. It drops the multi-speed modes and Precision Drive assist of the DCF887. We rate it a good everyday driver for XR owners who do not need mode control; for assist and three speeds, step up to the DCF887 or compact DCF850.

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 1.2kg from £78.95at Tooled Up + £5.95 delivery View at Tooled Up ›

DCB183 2.0Ah · 36Wh 0.4kg 1.28kg from £44.95at Tooled Up + £5.95 delivery View at Tooled Up ›

DCBP318 3.5Ah · 63Wh 0.58kg 1.46kg from £99.95at Tooled Up + £5.95 delivery View at Tooled Up ›

DCB182 4.0Ah · 72Wh 0.61kg 1.49kg from £49.95at Tooled Up + £5.95 delivery View at Tooled Up ›

DCB184 5.0Ah · 90Wh 0.62kg 1.5kg from £59.95at Tooled Up + £5.95 delivery View at Tooled Up ›

DCB184B 5.0Ah · 90Wh 0.62kg 1.5kg No retailer price yet About this battery ›

DCBP518 5.0Ah · 90Wh 0.75kg 1.63kg from £122.95at Tooled Up + £5.95 delivery View at Tooled Up ›

DCB546 6.0Ah · 108Wh · via DeWalt 18V/54V FlexVolt 1.08kg 1.96kg 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 · 3yr

Up to 3 years1 year as standard, 3 once you register it with DeWalt

Register within 4 weeks. Batteries/chargers excluded (PowerStack eligible). Nailers and other fastening tools are excluded and keep 1 year. Kit tools registered individually.

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