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The Milwaukee 2658-20 is a compact 18V cordless impact wrench with a 3/8-inch friction-ring square drive, built for engine-bay and light assembly work. It delivers 167 ft-lbs of fastening torque, up to 2,450 rpm and 3,350 impacts per minute, with a variable-speed trigger and a built-in LED. It is sold as a bare tool, so you need an M18 battery and charger you already own. Against full-size 1/2-inch impact wrenches it trades peak torque for a smaller, lighter body that fits tight spaces; reviewers like the size and control but note the modest torque and the extra cost of batteries.
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Lowest price we've seen: $75.99 on Nov 11 at Amazon. Tracked across 5 stores since Nov 11.
Owners rate it around 4.1 out of 5. They like the compact size, the control and the M18 battery compatibility, and most criticism centers on torque limits and the bare-tool packaging.
The Milwaukee M18 3/8" Impact Wrench (model 2658-20) is a cordless impact wrench that runs on an 18V lithium-ion battery. It is sold as a bare tool, so no battery is included.
It delivers 167 ft-lbs of fastening torque and 0 to 3,350 impacts per minute, with a speed of 2,450 rpm. Variable speed control gives continuous speed settings, and an LED light is built in. The 3/8-inch square drive has a friction ring.
