82°Countersink Drill Bit, SYOSI 5Pcs Free Replaceable HSS Drill Bits for Wood 3/8" Quick-Change, Chamfered Adjustable Drilling Tool Kit on Pilot Counter Sink Holes for Woodworking

High Durability: This countersink drill bit set is proudly made of classic High Speed Steel with excellent hardness of HRC 62-64; It offers superior cutting power, high durability, and good abrasion resistance., True 82° Angle: These pilot screw countersinks bits are designed to match the most commonly used woodworking 82° screws you might encounter in the US and canada., Self-Cleaning: Drill bits are precisely fit into the countersink sleeves and the two chamfered flutes enable faster operation and self-clearing drilling on the swarf, making perfectly sized and shaped holes., Perfect Your Carpentry: The 2 in 1 design turns two-step countersinking into one-step operation. This can make perfect countersink holes for both flush-set and plugged screws, without splitting the wood and enjoying neat projects with drill bit sets., Multifunctional Use: Comes with 5 pieces of replaceable drill bits as a bonus and covers the full range of screw sizes. The countersink bits are ideal for bench drill, hand drill, and a conventional electric drill, perfect for wood, fiberboard etc.