VERIFIED · 2026 canonical · www.jaspecs.com

Milwaukee M18 Brushless 1/4 in. Hex 3 Speed Impact Driver Bare Tool

Model number
2851-20

The Milwaukee M18 Brushless 1/4 in. Hex 3 Speed Impact Driver is a cordless impact driver positioned between Milwaukee's standard M18 and M18 FUEL impact-driver offerings. This tool-only version is intended for users who want a brushless M18 driver with multi-speed control.

identifiers stable · addressable
Model no.
2851-20
Brand
Milwaukee
Category
Impact Driver
Canonical URL
/milwaukee/impact-driver/2851-20-m18-brushless-1-4-hex-3-speed-impact-driver-bare-tool/
16 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
Battery Platform
M18
Chuck Type
Hex Quick Change
Chuck Size (in.)
0.25
Speed Settings
3
Hammer Function
No
One Key Enabled
No
Warranty
5-year limited

§ What's Included

01 (1) M18 Brushless 1/4 in. Hex 3 Speed Impact Driver (2851-20)

§ Warranty

5-year limited

§ FAQ

Does the 2851-20 include a battery or charger?

No. The 2851-20 is sold as a bare tool and uses Milwaukee's M18 battery system.

What kind of work is the 2851-20 best suited for?

The 2851-20 is positioned for users who want a cordless impact driver on the M18 platform.

What does the 3-speed setup on the 2851-20 add?

The multi-speed setup gives users better control across lighter fastening and higher-output driving tasks.