Impact drivers / DEWALT 20V MAX ATOMIC

DEWALT DCF850 impact driver

Researched by Rob Pitman, licensed electrician (Australia) · Specs checked 2026-10-16 · From manufacturer specs, not a hands-on test

Battery platformDEWALT 20V MAX
Ways to buy2 US SKUs
Specs published4 of 11

Own DEWALT 20V MAX batteries and a charger? The DCF850B bare tool is the same tool without paying for them again. Starting from scratch? The DCF850P1 kit includes Belt hook, 20V MAX 5.0Ah Battery, Charger, Contractor bag.

Ways to buy this tool

SKUTypeWhat is in the box
DCF850B
"B": Bare tool: no battery or charger
BARE TOOL
  • Tool
  • Belt Hook
DCF850P1
"P1": Kit with 1 DCB205 5.0Ah battery (usually)
KIT
  • Tool
  • Belt hook
  • 20V MAX 5.0Ah Battery
  • Charger
  • Contractor bag

Same tool in each box; the SKUs differ in what comes with it. The box contents come from the manufacturer; the suffix notes are a guide. How DEWALT model numbers work.

Specs

Ratings are the manufacturer's and are not comparable across brands unless measured the same way.

Max torque (manufacturer rating)1,825 in-lbs [1]
Max speed3,250 rpm [1]
MotorBrushless [1]
ChuckHex [1]
Impact rateNot published
Speed settingsNot published
Drive modesNot published
Weight, tool onlyNot published
Weight with batteryNot published
Head lengthNot published
WarrantyNot published

Compare DCF850 with another model

Sources

  1. DEWALT US product page DCF850B, retrieved 2026-10-16
  2. DEWALT US product page DCF850P1, retrieved 2026-10-16

Figures not published by the manufacturer are left out rather than guessed. Found an error? Tell us.