The Milwaukee 48-32-8000 is a 6-piece impact duty extractor set built to grip and remove stuck, rounded-over, rusted, painted-on, stripped, and damaged fasteners. It includes five extractors in 1/4, 5/16, 3/8, 7/16, and 1/2 in. sizes for common fasteners from 1/4 in. to 1/2 in., and each one accepts 3/8 in. square drive tools. A 1/4 in. to 3/8 in. square socket adapter is also included, so you can use the extractors in a quick-change impact driver. The extractors are made from thick, hardened alloy steel, and their optimized geometry bites onto worn fastener heads. Color-coded bands make it easy to pick the right size on the job site, and a retention holder keeps the extractors organized.