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Milwaukee M12 Subcompact Brushless 1/4" Hex Impact Driver (3450-20)

Ranked #30 of 60 in Best cordless impact drivers and wrenches, ranked on official maker specs. Here is every spec we scored, where it came from, and how it compares.

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M

#30

Milwaukee M12 Subcompact Brushless 1/4" Hex Impact Driver (3450-20)

Best for: Official 12 V, 3000 RPM, 1.3 lb

6.8/10

What we like

Official maker product page lists a no-load speed of 3000 RPM.
Official maker product page lists a brushless motor.
Official maker product page lists a maximum torque of 1100 in-lb.
Official maker product page lists a tool weight of 1.3 lb.

Watch out for

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

Score breakdown

Official no-load speed 30%

Official tool weight 25%

Official voltage 25%

Official brushless motor 20%

Official no-load speed	3000 RPM
Official tool weight	1.3 lb
Official voltage	12 V
Official brushless motor	Yes
Official model number	3450-20
Official product name	M12 Subcompact Brushless 1/4" Hex Impact Driver
Official voltage	12 V
Official no-load speed	3000 RPM
Official tool weight	1.3 lb
Official brushless motor	Yes
Official max torque	1100 in-lb (official listing: 1100 in-lbs)
Official chuck size	1/4 in
Official chuck type	Hex
Official battery system	M12
Official motor type	Brushless
Official warranty	5 Year Tool
Official configuration	Tool only (battery and charger sold separately, per the official product page).
Price	Check price

Check price at Amazon

Specs source:

Official Milwaukee product page (3450-20)

Milwaukee M12 Subcompact Brushless 1/4" Hex Impact Driver (3450-20) head-to-head

Featured inImpact drivers with lower official tool weight

How it compares

Open the full comparison table

DeWalt ATOMIC 20V MAX 3/8-in Cordless Impact Wrench With Hog Ring Anvil (Tool Only) (DCF923B)

#1 · Official 20 V, 3550 RPM, 2.47 lb

DeWalt 20V MAX XR 3-Speed Impact 1/4-in Driver (Tool Only) (DCF845B)

#2 · Official 20 V, 3400 RPM, 2.35 lb

DeWalt 20V MAX XR Brushless Drywall Screwgun (Tool Only) (DCF630B)

#3 · Official 20 V, 4850 RPM, 2.6 lb

DeWalt 20V MAX XR 1/4-in 3-Speed Brushless High Torque Impact Driver (Tool Only) (DCF860B)

#4 · Official 20 V, 3800 RPM, 2.8 lb

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

#5 · Official 18 V, 3600 RPM, 1.7 lb

DeWalt ATOMIC 20V MAX 1/4-in 3-Speed Brushless Impact Driver (Tool Only) (DCF850B)

#6 · Official 20 V, 3250 RPM, 2.4 lb

Milwaukee M18 1/4" Hex Impact Driver (2850-20)

#7 · Official 18 V, 3400 RPM, 2 lb

Milwaukee M18 Brushless 1/4" Hex 3 Speed Impact Driver Bare Tool (2851-20)

#8 · Official 18 V, 3400 RPM, 2 lb

Milwaukee M18 FUEL ¼” Hex Impact Driver (2953-20)

#9 · Official 18 V, 3900 RPM, 2.2 lb

DeWalt 20V MAX XR Brushless Cordless 1/4-in Quiet Hydraulic Impact Driver (Tool Only) (DCF870B)

#10 · Official 20 V, 3000 RPM, 2.57 lb

DeWalt ATOMIC 20V MAX 1/4-in Brushless Compact Impact Driver (Tool Only) (DCF809B)

#11 · Official 20 V, 2800 RPM, 2.43 lb

DeWalt 20V MAX 3/8-in Cordless Impact Wrench With Hog Ring Anvil (Tool Only) (DCF913B)

#12 · Official 20 V, 2850 RPM, 2.69 lb

Makita 18V LXT Brushless Quick-Shift Mode 3-Speed Impact Driver, Tool Only (XDT14Z)

#13 · Official 18 V, 3600 RPM, 3.3 lb

DeWalt 20V MAX 1/2-in Cordless Impact Wrench With Hog Ring Anvil (Tool Only) (DCF911B)

#14 · Official 20 V, 2800 RPM, 2.69 lb

DeWalt ATOMIC 20V MAX 1/2-in Cordless Impact Wrench With Hog Ring Anvil (Tool Only) (DCF921B)

#15 · Official 20 V, 2800 RPM, 2.76 lb

Makita 18V LXT Brushless Impact Driver, Tool Only (XDT13Z)

#16 · Official 18 V, 3400 RPM, 3.3 lb

DeWalt ATOMIC 20V MAX 1/2-in Cordless Impact Wrench With Detent Pin Anvil (Tool Only) (DCF922B)

#17 · Official 20 V, 2500 RPM, 2.85 lb

DeWalt 20V MAX XR 7/16-in Brushless Cordless Impact Wrench (Tool Only) (DCF937B)

#18 · Official 20 V, 3250 RPM, 5.14 lb

Milwaukee M12 FUEL 1/4" Hex Impact Driver (3453-20)

#19 · Official 12 V, 3600 RPM, 1.6 lb

Milwaukee M18 FUEL with ONE-KEY 1/2" Compact Impact Wrench w/ Pin Detent (2759-20)

#20 · Official 18 V, 2500 RPM, 2.5 lb

Milwaukee M18 FUEL with ONE-KEY 3/8" Compact Impact Wrench w/ Friction Ring (2758-20)

#21 · Official 18 V, 2500 RPM, 2.5 lb

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

#22 · Official 12 V, 3600 RPM, 2.05 lb

Milwaukee M12 FUEL 3/8" Subcompact Impact Wrench w/ Friction Ring (3049-20)

#23 · Official 12 V, 3400 RPM, 1.6 lb

Milwaukee M18 FUEL 1/2" Compact Impact Wrench w/ Friction Ring (2855-20)

#24 · Official 18 V, 2400 RPM, 2.4 lb

Milwaukee M18 FUEL 1/2" Compact Impact Wrench w/ Friction Ring Kit (2855-22r)

#25 · Official 18 V, 2400 RPM, 2.4 lb

Milwaukee M18 FUEL 3/8" Compact Impact Wrench w/ Friction Ring (2854-20)

#26 · Official 18 V, 2400 RPM, 2.4 lb

Makita 12V max CXT Brushless Impact Driver, Tool Only (DT04Z)

#27 · Official 12 V, 3900 RPM, 2.1 lb

Milwaukee M12 FUEL 1/4" Hex Impact Driver (Tool Only) (2553-20)

#28 · Official 12 V, 3300 RPM, 1.76 lb

Milwaukee M12 FUEL Stubby 1/4" Impact Wrench (2552-20)

#29 · Official 12 V, 3200 RPM, 1.6 lb

DeWalt 20V MAX Cordless 1/4-in Impact Driver (Tool Only) (DCF885B)

#31 · Official 20 V, 2800 RPM, 2.25 lb

Milwaukee M18 FUEL 1/2" Mid-Torque Impact Wrench w/ Friction Ring (2962-20)

#32 · Official 18 V, 2575 RPM, 3.9 lb

Milwaukee M18 FUEL 1/2" Mid-Torque Impact Wrench w/ Friction Ring Kit (2962-22r)

#33 · Official 18 V, 2575 RPM, 3.9 lb

Milwaukee M18 FUEL 3/8" Mid-Torque Impact Wrench w/ Friction Ring (2960-20)

#34 · Official 18 V, 2575 RPM, 3.9 lb

Milwaukee M18 FUEL 3/8" Mid-Torque Impact Wrench w/ Friction Ring (2960-22r)

#35 · Official 18 V, 2575 RPM, 3.9 lb

Milwaukee 3/8" M12 FUEL Stubby Impact Wrench (2562-20)

#36 · Official 12 V, 3000 RPM, 2.2 lb

Milwaukee M18 FUEL 1/2" Controlled Mid-Torque Impact Wrench (3062-20)

#37 · Official 18 V, 2400 RPM, 3.79 lb

Milwaukee M18 FUEL 1/4" Hex Impact Driver Kit (2753-22)

#38 · Official 18 V, 3000 RPM, 2.1 lb

Milwaukee M18 FUEL with ONE-KEY 1/4" Hex Impact Driver Kit (2757-22)

#39 · Official 18 V, 3000 RPM, 2.1 lb

DeWalt 12V MAX 1/4-in Brushless Impact Driver (Tool Only) (DCF801B)

#40 · Official 12 V, 2850 RPM, 2.15 lb

Milwaukee M18 FUEL 1/4" Hex Impact Driver Kit – XC Battery (2653-22)

#41 · Official 18 V, 2900 RPM

Milwaukee M12 FUEL Stubby 1/2" Impact Wrench (2555-20)

#42 · Official 12 V, 2700 RPM, 2 lb

Milwaukee M12 FUEL Stubby 3/8" Impact Wrench (2554-20)

#43 · Official 12 V, 2700 RPM, 2 lb

Milwaukee M12 FUEL 1/2" Right Angle Impact Wrench (2565-20)

#44 · Official 12 V, 3000 RPM, 2.85 lb

Milwaukee M12 FUEL 3/8” Impact Wrench (2454-20)

#45 · Official 12 V, 2650 RPM, 2 lb

Milwaukee M12 FUEL 3/8" Right Angle Impact Wrench w/ Friction Ring (2564-20)

#46 · Official 12 V, 3000 RPM, 2.83 lb

DeWalt 12V MAX Brushless 1/2-in Cordless Impact Wrench (Tool Only) (DCF901B)

#47 · Official 12 V, 2850 RPM, 2.6 lb

Milwaukee 18-volt two speed 1/4" hex impact driver - tool-only (2657-20)

#48 · Official 18 V, 2750 RPM, 2.3 lb

Milwaukee M18 1/4" Hex Impact Driver (2656-20)

#49 · Official 18 V, 2750 RPM, 2.3 lb

Makita 18V LXT Impact Driver, Tool Only (XDT11Z)

#50 · Official 18 V, 2900 RPM, 3.3 lb

DeWalt 12V MAX 3/8-in Brushless Cordless Impact Wrench Kit (DCF903GJ1G1)

#51 · Official 12 V, 2850 RPM, 5.45 lb

Milwaukee 18-volt Cordless two Speed 1/4" Hex Impact Driver - tool only (2658-20)

#52 · Official 18 V, 2450 RPM, 4.1 lb

Milwaukee 18-volt half inch impact wrench with pin detent - tool only (2659-20)

#53 · Official 18 V, 2450 RPM, 4.1 lb

Milwaukee 12-volt 3/8 Inch Impact Wrench (2463-20)

#54 · Official 12 V, 2500 RPM, 1.9 lb

Milwaukee M12 ¼” Hex Impact Driver (Tool Only) (2462-20)

#55 · Official 12 V, 2500 RPM, 1.9 lb

Makita 12V max CXT Impact Driver, Tool Only (DT03Z)

#56 · Official 12 V, 2600 RPM, 2.3 lb

Milwaukee 12-volt ¼” Impact Wrench (2461-20)

#57 · Official 12 V, 2500 RPM, 2.2 lb

Milwaukee 12-volt quarter Inch Impact Wrench Kit (2461-22)

#58 · Official 12 V, 2500 RPM, 2.2 lb

Milwaukee M12 1/4" Hex Right Angle Impact Driver (2467-20)

#59 · Official 12 V, 2450 RPM, 2.2 lb

Milwaukee M12 FUEL 1/4” Impact Wrench Kit (2452-22)

#60 · Official 12 V, 2650 RPM