Irwin Tools 3041015 7 16 inch X 6 inch Speedbor Max Drill Bit

Product Description Speedbor Max is the fastest Speedbor. Tri flute design for faster chip ejection. There are 3 cutting edges for added durability and the full screw tip allows the bit to self feed for easier pull through. 1/4'' quick change hex shank prevents slipping in drill chucks and bit extensions. Fits all standard quick change chucks and adapters. From the Manufacturer The Irwin Tools 3041015- 7/16" 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.