IRWIN Hex Shank Drill Bit - high-speed steel 12-piece 5/64-Inch

These drill bits use a 135° split-point tip to start drilling quickly and minimize walking. Each drill bit is made with high-speed steel with a black oxide treatment to resist corroding. 1/4-inch hex shank works in most Lock-n-Load quick-change extensions as well as most drill chucks. Suitable applications include automotive, maintenance and repair, portable drills and stationary drill presses. 12-piece set includes 1/16"", 5/64"", 3/32"", 7/64"", 1/8"" (2), 9/64"", 5/32"", 3/16"", 7/32"" and 1/4"" drill bits and a Lock-n-Load quick-change extension. These drill bits use a 135° split-point tip to start drilling quickly and minimize walking. Each drill bit is made with high-speed steel with a black oxide treatment to resist corroding. 1/4-inch hex shank works in most Lock-n-Load quick-change extensions as well as most drill chucks. Suitable applications include automotive, maintenance and repair, portable drills and stationary drill presses. 12-piece set includes 1/16"", 5/64"", 3/32"", 7/64"", 1/8"" (2), 9/64"", 5/32"", 3/16"", 7/32"" and 1/4"" drill bits and a Lock-n-Load quick-change extension