Irwin Speedbor MAX Speed Bits 6" Standard Length Bits 7/16" X 6" Size:7/16" X 6" Shank mounted tungsten carbide burrs

Shank mounted tungsten carbide burrs are double cut for fine work

tapered drill features widened flutes for drilling fast

Includes Pro Set case made of molded ABS resin with full-length metal hinge pin

designed for hand threading work in a variety of materials taps produce a class 2b thread

Irwin Speedbor MAX Speed Bits 6" Standard Length Bits 7/16" X 6" Size:7/16" X 6" Shank mounted tungsten carbide burrsSpeedbor MAX Speed Bits 6" Standard Length Bits Features: Three cutting spurs for faster, cleaner holes, less breakout, and extended drilling life. Full screw point tip allows bit to self feed for ease of drilling. Tapered tri flute design for faster chip ejection and less binding. 1 4" quick change shank reduces slipping in standard chucks and is compatible with all 1 4" quick change chucks, including impact drills.