The Fastest Speedbor spade bit ever, featuring a Tri-Flute design that allows for faster chip ejection. The Speedbor MAX has cutting spurs with three cutting edges for added durabilty. A full screw tip allows the bit to self feed. The grooved hex shank prevents slipping in drill chuck or bit extension. Speedbor MAX bits fit all standard 1/4″ quick change chucks.
1″ X 6″ IRWIN TRI FLUTE SPEEDBORE DRILL BIT
A fast speedbor spade bit that features a Tri-Flute design with a fast chip ejection
Cutting spurs have 3 cutting edges
Grooved hex shank prevents slipping
Fits all standard 1/4-inch quick change chucks
Full screw tip allows the bit to self feed