Drill and tap holes in a range of diameters. With a drill bit point to drive into the workpiece, these tools can drill and tap holes in a single step. They also save you time when changing from tool to tool. The grooved shank snaps directly to drills, power screwdrivers, and other tools that accept a 1/4" hex shank. However, they’re not rated for impact drivers. They’re made of high-speed steel and are for use on most metal and plastic.

Their spiral flutes keep chips clear by drawing them back toward the tap and out of the hole. Recommended for use in through holes, all have a plug chamfer with 3-5 chamfered cutting threads, so they’re suitable for start-to-finish tapping.