Lot of 2

This countersink drill bit set for wood, aluminum, and composites is designed for long-lasting performance. Engineered with an adjustable, low friction revolving depth-stop with a no-thrust ball bearing, this tool allows for quick and easy countersink depth adjustment without scratching or burning the work surface. The large openings around the collar ensure effective chip evacuation during use, keeping your workspace clean and your bit running cool. This countersink set enables users to drill a pilot hole and tapered countersink in one step.