Speedbor Max - 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. Includes (1) each: 5/8", 3/4" and 1".