Irwin Speedbor MAX Speed Bits 6" Standard Length Bits 7/16" X 6" Size:7/16" X 6" counter bore size 3/8"

counter bore size 3/8"

As Flaps Wear Down New Abrasive Is Exposed

1/4" x 18"

Shank mounted tungsten carbide burrs are double cut for fine work

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" counter bore size 3/8"Speedbor 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.