Milwaukee
Milwaukee Tool M18 Brushless 1/2" High Torque Impact Wrench w/ Friction Ring
- SKU:
- MLW2666-20
- Availability:
- Usually Ships Same Day
- Weight:
- 6.50 LBS
Description

DUTY®
M18 Brushless 1/2 in. High Torque Impact Wrench
M18 Brushless 1/2 in. High Torque Impact Wrench for task-specific cordless fastening.
Product Overview
This brushless impact drives sockets for fastening. A friction ring retains the socket.
The variable trigger controls operation. An integrated LED improves visibility around the fastener.
- Friction RingRetains the impact socket.
- Variable TriggerControl speed during use.
- Brushless MotorPowers the socket drive.
- Work LightIlluminate the fastener.
Technical Specifications
- Model
- 2666-20
- Battery System
- M18
- Square Drive
- 1/2 in.
- Socket Retention
- Friction ring
- Speed
- 0–1,750 RPM
- Impact Rate
- 0–2,000 IPM
Choose the Correct Fit
Match the accessory drive and fastener size before use. Use impact-rated accessories suited to the application.
Select the operating mode or control setup required for the joint. Follow the specified final tightening and inspection procedure.
Installation & Care
Remove the battery before changing accessories or adjusting the tool. Check that the bit or socket is fully seated and retained.
Inspect the accessory and retention mechanism before work. Follow the exact model manual for setup, maintenance and storage.
Small Details. Big Jobsite Energy.
Get set. Stay focused. Make your next move count.
THE NEXT JOB.
Ask Willy:
Need help choosing this cordless tool? Share model 2666-20, your task and the accessories you plan to use.
Important Product Questions
Which sockets fit?
Use impact-rated sockets with a 1/2 in. square drive and the correct fastener size. This model uses friction ring retention.
How is operation controlled?
Use the variable-speed trigger to manage the drive for the task.
Does impact operation replace final-torque verification?
Follow the joint specification for final tightening and inspection. Do not assume impact operation alone establishes the required final torque.