VERIFIED · 2026 canonical · www.jaspecs.com

Milwaukee M18 Compact Brushless 1/4 in. Hex Impact Driver

Model number
3650-20

The Milwaukee M18 Compact Brushless 1/4 in. Hex Impact Driver is a cordless fastening tool designed for daily jobsite use where M18 battery compatibility matters more than the highest-output FUEL model. Milwaukee lists a brushless motor, up to 3,600 RPM, up to 4,900 IPM, a 4.4 in. body length, and a 1.7 lb bare-tool weight. This tool-only version is aimed at users who want a compact M18 impact driver for framing hardware, deck work, rough-in, and general fastening.

identifiers stable · addressable
Model no.
3650-20
Brand
Milwaukee
Category
Impact Driver
Canonical URL
/milwaukee/impact-driver/3650-20-m18-compact-brushless-1-4-hex-impact-driver/
19 spec rows · each row is anchorable

§ Specifications

#specifications
Product Type
Impact Driver
Voltage (V)
18
Cordless / Corded
Cordless
Power Source
Battery
Motor Type
Brushless
Tool Only
Yes
Batteries Included
0
Charger Included
No
Piece Count
1
Length (in.)
4.4
Weight (lbs)
1.7
Battery Platform
M18
Chuck Type
Hex
Chuck Size (in.)
0.25
Max Speed (RPM)
3,600
Maximum Ipm
4,900
Hammer Function
No
One Key Enabled
No
Warranty
5-year limited

§ What's Included

01 (1) M18 Compact Brushless 1/4 in. Hex Impact Driver (3650-20)

§ Warranty

5-year limited

§ FAQ

Is the 3650-20 tool-only?

Yes. The 3650-20 does not include batteries or a charger.

What size bits does the 3650-20 use?

It uses standard 1/4 inch hex impact bits.

How compact is the 3650-20?

Milwaukee lists it at 4.4 in. long and 1.7 lb excluding battery.