3/8 Inch Titanium-Coated Countersink - 82 Degree 5 Flute

The countersink drill bit set is made of industrial-grade high-speed steel with a hard titanium coating. High hardness, offer superior cutting power and is durable. 82-degree tip drills countersink holes into most machinable metals, plywood, softwood, hardwood, fiberglass plastic, mild steel, don't work on stainless. A 1/4” round shank fits all handheld and stationary drills. Five-flute design reduces vibration and removes chips better, provides smoother drilling experience and extended bit life.