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DeWalt 20V MAX* 1/4 in. Brushless Cordless Impact Driver (Tool Only) (DCF840B)
DeWalt 20V MAX* 1/4 in. Brushless Cordless Impact Driver (Tool Only) (DCF840B)
DeWalt 20V MAX* 1/4 in. Brushless Cordless Impact Driver (Tool Only) (DCF840B)
DeWalt 20V MAX* 1/4 in. Brushless Cordless Impact Driver (Tool Only) (DCF840B)
DeWalt 20V MAX* 1/4 in. Brushless Cordless Impact Driver (Tool Only) (DCF840B)
DeWalt 20V MAX* 1/4 in. Brushless Cordless Impact Driver (Tool Only) (DCF840B)
DeWalt 20V MAX* 1/4 in. Brushless Cordless Impact Driver (Tool Only) (DCF840B)
DeWalt 20V MAX* 1/4 in. Brushless Cordless Impact Driver (Tool Only) (DCF840B)
DeWalt 20V MAX* 1/4 in. Brushless Cordless Impact Driver (Tool Only) (DCF840B)
DeWalt 20V MAX* 1/4 in. Brushless Cordless Impact Driver (Tool Only) (DCF840B)
DeWalt 20V MAX* 1/4 in. Brushless Cordless Impact Driver (Tool Only) (DCF840B)
DeWalt 20V MAX* 1/4 in. Brushless Cordless Impact Driver (Tool Only) (DCF840B)
DeWalt 20V MAX* 1/4 in. Brushless Cordless Impact Driver (Tool Only) (DCF840B)
DeWalt 20V MAX* 1/4 in. Brushless Cordless Impact Driver (Tool Only) (DCF840B)

DeWalt 20V MAX* 1/4 in. Brushless Cordless Impact Driver (Tool Only) (DCF840B)

Drive screws and other fasteners with this high-output 20V MAX* 1/4 in. Brushless Cordless Impact Driver that was engineered to be lightweight for ease of use without sacrificing performance. The brushless motor delivers up to 1,700 in-lb of torque and up to 3,200 rpm for driving large-diameter screws. The compact design provides optimized maneuverability and access to confined areas when performing cabinetry and framing jobs. Maintain productivity in low-light spots with a 3-LED on-board work light that illuminates dimly lit workspaces.

Drive screws and other fasteners with this high-output 20V MAX* 1/4 in. Brushless Cordless Impact Driver that was engineered to be lightweight for ease of use without sacrificing performance. The brushless motor delivers up to 1,700 in-lb of torque and up to 3,200 rpm for driving large-diameter screws. The compact design provides optimized maneuverability and access to confined areas when performing cabinetry and framing jobs. Maintain productivity in low-light spots with a 3-LED on-board work light that illuminates dimly lit workspaces.

There are no live offers for DeWalt 20V MAX* 1/4 in. Brushless Cordless Impact Driver (Tool Only) (DCF840B) right now. The all-time low we recorded was $49.00 on 16 Aug 2026. Set a price alert to hear when it's back in stock.

Prices last updated 4 Sept 2026.

DeWalt 20V MAX* 1/4 in. Brushless Cordless Impact Driver (Tool Only) (DCF840B)

Drive screws and other fasteners with this high-output 20V MAX* 1/4 in. Brushless Cordless Impact Driver that was engineered to be lightweight for ease of use without sacrificing performance. The brushless motor delivers up to 1,700 in-lb of torque and up to 3,200 rpm for driving large-diameter screws. The compact design provides optimized maneuverability and access to confined areas when performing cabinetry and framing jobs. Maintain productivity in low-light spots with a 3-LED on-board work light that illuminates dimly lit workspaces.

Drive screws and other fasteners with this high-output 20V MAX* 1/4 in. Brushless Cordless Impact Driver that was engineered to be lightweight for ease of use without sacrificing performance. The brushless motor delivers up to 1,700 in-lb of torque and up to 3,200 rpm for driving large-diameter screws. The compact design provides optimized maneuverability and access to confined areas when performing cabinetry and framing jobs. Maintain productivity in low-light spots with a 3-LED on-board work light that illuminates dimly lit workspaces.

Price comparison

Price data powered by pricesAPI.io

Last updated at 09/04/2026 04:32:49

https://www.google.com/s2/favicons?domain=amazon.com.au&sz=64Amazon.com.au

$243.14

Dewalt 18V Brushless Impact Driver 1/4 Inch Hex DCF840 (Tool Skin only, battery and charger are not included)

Affiliate Disclosure: We may receive a small commission for purchases made through this link at no extra cost to you. This helps support our site. Thank you!

https://www.google.com/s2/favicons?domain=cashconverters.com.au&sz=64Cash Converters

$59.00

Dewalt Dcf840 Impact Driver

Delivery $22

https://www.google.com/s2/favicons?domain=u-buy.com.au&sz=64Ubuy Australia

$168.00

DEWALT DCF840B-NBX, 20V, 0.25 inch Impact Driver, 1,850/lb 3250RPM

Delivery between 8–12 Sept $35.88

https://www.google.com/s2/favicons?domain=desertcart.com.au&sz=64desertcart.com.au

$180.60

DEWALT 20V MAX* 1/4 in. Brushless Cordless Impact Driver (Tool Only) (DCF840B)

Delivery between 10–13 Sept $29

https://www.google.com/s2/favicons?domain=ebay.com.au&sz=64eBay.com.au

$199.00

Dewalt 18v Xr Brushless Impact Driver - Bare Unit Dcf840n-xj

Free delivery

Affiliate Disclosure: We may receive a small commission for purchases made through this link at no extra cost to you. This helps support our site. Thank you!

Price history

Price history

Reviews

17 November 2022CHRIS H.

originally posted on federatedtool.com/

DEWALT DCF840B - 20V MAX LI-ION 1/4" IMPACT DRIVER - TOOL ONLY

It’s not bad
16 March 2023Nick K.

originally posted on federatedtool.com/

Out of all dewalts shitty impact drivers this one is probably the best, still better than the new dcf845

Specification

Power sourceBattery Powered
Maximum rotational speed3200 RPM
Voltage20
Torque1700 Inch Pounds
Speed3200 RPM

Price comparison

Updated about 2 hours ago
https://www.google.com/s2/favicons?domain=amazon.com.au&sz=64
Amazon.com.au

$243.14

Dewalt 18V Brushless Impact Driver 1/4 Inch Hex DCF840 (Tool Skin only, battery and charger are not included)

Affiliate Disclosure: We may receive a small commission for purchases made through this link at no extra cost to you. This helps support our site. Thank you!

https://www.google.com/s2/favicons?domain=cashconverters.com.au&sz=64
Cash Converters

$59.00

Dewalt Dcf840 Impact Driver

Delivery $22

https://www.google.com/s2/favicons?domain=u-buy.com.au&sz=64
Ubuy Australia

$168.00

DEWALT DCF840B-NBX, 20V, 0.25 inch Impact Driver, 1,850/lb 3250RPM

Delivery between 8–12 Sept $35.88

https://www.google.com/s2/favicons?domain=desertcart.com.au&sz=64
desertcart.com.au

$180.60

DEWALT 20V MAX* 1/4 in. Brushless Cordless Impact Driver (Tool Only) (DCF840B)

Delivery between 10–13 Sept $29

https://www.google.com/s2/favicons?domain=ebay.com.au&sz=64
eBay.com.au

$199.00

Dewalt 18v Xr Brushless Impact Driver - Bare Unit Dcf840n-xj

Free delivery

Affiliate Disclosure: We may receive a small commission for purchases made through this link at no extra cost to you. This helps support our site. Thank you!

Price history

Price history

Reviews

17 November 2022

DEWALT DCF840B - 20V MAX LI-ION 1/4" IMPACT DRIVER - TOOL ONLY

CHRIS H. originally posted on federatedtool.com/
It’s not bad
16 March 2023

Out of all dewalts shitty impact drivers this one is probably the best, still better than the new dcf845

Nick K. originally posted on federatedtool.com/

Specification

Power sourceBattery Powered
Maximum rotational speed3200 RPM
Voltage20
Torque1700 Inch Pounds
Speed3200 RPM