About This Item
Irwin Speedbor Steel Wood Boring Bit Set Quick-Change Hex Shank. The Fastest Speedbor 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.
