Milwaukee Tool · 2666-21B · UPC 045242745586

M18 Brushless 1/2" High Torque Impact Wrench w/ Friction Ring Kit

M18 batteryFully mapped from manufacturer data

The Milwaukee Tool 2666-21B contains 1 accessory, 1 battery, 1 charger.

PriceNo retail listing found yet.

What’s in the 2666-21B

PartQtyMilwaukee Tool lists it as
Milwaukee M18 Brushless 1/2" High Torque Impact Wrench w/ Friction Ring1M18™ Brushless 1/2" High Torque Impact Wrench w/ Friction Ring
Milwaukee M18 REDLITHIUM XC 4.0 Extended Capacity Battery Pack1M18™ REDLITHIUM™ XC 4.0 Extended Capacity Battery Pack
Milwaukee M18 & M12 Multi-Voltage Charger1M18™ & M12™ Multi-Voltage Charger
Storage case1Contractor Bag

As described by Milwaukee Tool

  • 1x M18™ Brushless 1/2" High Torque Impact Wrench w/ Friction Ring (2666-20)
  • 1x M18™ REDLITHIUM™ XC 4.0 Extended Capacity Battery Pack (48-11-1840)
  • 1x M18™ & M12™ Multi-Voltage Charger (48-59-1812)
  • 1x Contractor Bag

Kits that share parts with the 2666-21B

All kits →

Questions

What comes in the Milwaukee Tool 2666-21B?

The Milwaukee Tool 2666-21B contains 1 accessory, 1 battery, 1 charger.

Which Milwaukee M18 connection does the 2666-21B use?

Its pieces use M18 battery. M18 battery is Milwaukee's 18-volt slide-on battery pack.

Which kits share parts with the 2666-21B?

2604-22 (2 shared parts), 2653-22 (2 shared parts), 2817A-21 (2 shared parts), 2893-22CX (2 shared parts).

Sources

  1. Milwaukee product page, "In The Box" (retrieved 2026-10-18)