Irwin Speedbor SPEEDBOR - Carbon Steel 1 In

Product DescriptionWoodboring Bit, Carbon Steel, Dia 1 In, Shank Size (In) Hex 1/4, Overall Length 6 In., For Use With 3/8 or 1/2 Drill The Irwin Speedbor 1-by-6-Inch Max Spade Bit is a fast speedbor spade bit that features a Tri-Flute design with a fast chip ejection. The Speedbor MAX has cutting spurs with three cutting edges for added durabilty, as well as a full screw tip allows the bit to self feed. The grooved hex shank prevents slipping in drill chuck or bit extension, while the bit itself fits all standard 1/4-inch quick change chucks.From the ManufacturerIRWIN Speedbor MAX 1 inch bit - 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.