The Irwin Speedbor 7/8 in. x 16 in. High Speed Steel Extra-Long Flat Spade Bit is designed to be 4 times faster than standard spade bits. It is crafted with high speed steel for strength and features a Blue-Groove point and cutting edge for more efficient chip removal. Its grooved hex shank prevents the bit from slipping in the drill chuck, and the bit works in all standard quick-change chucks.