Irwin Speedbor MAX Speed Bits 6" Standard Length Bits 11/16" X 6" Knife Blades All bits have a 4-1/2"

All bits have a 4-1/2" twist length and a 7-1/2" overall length

Ideal for cleaning of large surfaces

Patented head to handle assembly

Double cutting spurs scribe the outside of the hole reducing breakout

Irwin Speedbor MAX Speed Bits 6" Standard Length Bits 11/16" X 6" Knife Blades All bits have a 4-1/2"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.