The Milwaukee® seven piece contractor's self-feed bit kit is a complete assortment of the high-performance Milwaukee® self-feed drill bits you need on the jobsite. Milwaukee® self-feed drill bits deliver speed and endurance for repetitive drilling of large holes. Designed for any trade that demands woodcutting for installing pipe and conduit, self-feed bits feed into work without pressure and provide faster boring of clean, accurate holes. The bits have improved balance with reduced run out, while the hex shank provides a secure gripping surface for the drill chuck. Every Milwaukee® Self-feed drill bit is coated with a rust inhibitor. Built to last and designed to perform, these self-feed bits are resharpenable so you can keep them cutting like new. Milwaukee® Contractor's Selfeed Bit Kit, Stringer Bead, 7 Piece, Alloy Steel