Irwin Tools 3041020 1 3/8' X 6' Speedbor Max Drill Bit

Product Description 1-3/8' x 6', Speedbor Max Drill Bit, Standard Length, Tri-Flute Design For Faster Chip Ejection, Cutting Spurs Have 3 Cutting Edges For Added Durability, Full Screw Tip Allows Bit To Self Feed, Grooved Hex Shank Prevents Slipping In Drill Chuck Or Bit Extension, Fits All Standard 1/4' Quick Change Chucks. From the Manufacturer The Irwin Tools 3041020- 1 3/8' X 6' SPEEDBOR MAX Drill Bit is the Fastest Speedbor spade bit ever. Tri-Flute design for faster chip ejection. Cutting spurs have 3 cutting edges for added durability. Full screw tip allows bit to self feed. Grooved hex shank prevents slipping in drill chuck or bit extension. Fits all standard 1/4' quick change chucks.