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Milwaukee M18 Compact Brushless 1/4" Hex Impact Driver (3650-20) vs DeWalt 12V MAX Brushless 3/8-in Cordless Impact Wrench (Tool Only) (DCF902B)

Official Milwaukee and DeWalt cordless tools, ranked in this category from the makers' product pages.

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9.4/10

Best for: Official 18 V, 3600 RPM, 1.7 lb

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Best for: Official 12 V, 3600 RPM, 2.05 lb

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Spec-by-spec comparison

Green marks the better published figure. "Not listed" means the manufacturer doesn't publish it.

SpecMilwaukee M18 Compact Brushless 1/4" Hex Impact Driver (3650-20)DeWalt 12V MAX Brushless 3/8-in Cordless Impact Wrench (Tool Only) (DCF902B)Weight
Official no-load speedThe official no-load speed published on the maker's product page, in RPM. When the official page lists a range, we use the highest official figure in that range. Official no-load speed is a free-speed figure, not a measured speed under load. Official values outside the reference range are clamped for scoring only; the official figure is still shown. 3600 RPM 3600 RPM 30%
Official tool weightThe official tool weight published on the maker's product page, in pounds. When the official page lists a weight excluding the battery, we use that official tool-only figure. Official values outside the reference range are clamped for scoring only; the official figure is still shown. 1.7 lb 2.05 lb 25%
Official voltageThe official battery-platform voltage published on the maker's product page (for example M12 / 12V max, M18 / 18V LXT, 20V MAX, 40V XGT or 60V MAX). A higher official platform voltage is not automatically the right tool for tight spaces. Official values outside the reference range are clamped for scoring only; the official figure is still shown. 18 V 12 V 25%
Official brushless motorWhether the official product page lists a brushless motor (Yes) or a brushed motor / no official listing. An official brushless listing scores at the top of this criterion; Not listed scores at the category minimum. Yes Yes 20%
Official model number3650-20DCF902Binfo
Official product nameM18 Compact Brushless 1/4" Hex Impact Driver12V MAX Brushless 3/8-in Cordless Impact Wrench (Tool Only)info
Official voltage18 V12 Vinfo
Official no-load speed3600 RPM3600 RPMinfo
Official tool weight1.7 lb2.05 lbinfo
Official brushless motorYesYesinfo
Official max torque1700 in-lb (official listing: 1700 in-lbs)Not listedinfo
Official chuck size1/4 inNot listedinfo
Official chuck typeHexHog Ring Anvilinfo
Official battery systemM18Not listedinfo
Official motor typeBrushlessBrushlessinfo
Official warranty5 Year Limited WarrantyNot listedinfo
Official configurationTool only (battery and charger sold separately, per the official product page).Tool only (battery and charger sold separately, per the official product page).info
TorquePick score9.4/107.4/10100%

Where each one comes out ahead

Milwaukee M18 Compact Brushless 1/4" Hex Impact Driver (3650-20)

Better published figure on: Official tool weight, Official voltage.

What we like

  • Official maker product page lists a no-load speed of 3600 RPM.
  • Official maker product page lists a brushless motor.
  • Official maker product page lists a maximum torque of 1700 in-lb.
  • Official maker product page lists a tool weight of 1.7 lb.

Watch out for

  • Official figures are for the configuration shown on the official product page, not a test we ran.

DeWalt 12V MAX Brushless 3/8-in Cordless Impact Wrench (Tool Only) (DCF902B)

No scored spec where it is strictly ahead; its case rests on the strengths below.

What we like

  • Official maker product page lists a no-load speed of 3600 RPM.
  • Official maker product page lists a brushless motor.
  • Official maker product page lists a tool weight of 2.05 lb.

Watch out for

  • Official maximum torque is Not listed as a specification on the official product page we used.

Verdict

Official no-load speed is 3600 RPM vs 3600 RPM; compare official tool weight, official voltage and whether the official page lists a brushless motor. Official torque, when published, is shown as a fact.

Milwaukee M18 Compact Brushless 1/4" Hex Impact Driver (3650-20) on AmazonDeWalt 12V MAX Brushless 3/8-in Cordless Impact Wrench (Tool Only) (DCF902B) on Amazon
Spec sources

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