17 Pc. Speedbor Spade Bit Set

17 Pc. Speedbor Spade Bit Set. Blue-Groove point and cutting edge. Double-cutting spurs scribe the outside of the hole. 10% larger shank. Grooved hex-shank. Fits all standard quick change chucks. Set Includes: 1/4, 5/16, 3/8, 7/16, 1/2, 9/16, 5/8, 11/16, 3/4, 13/16, 7/8, 15/16, 1, 1-1/8, 1-1/4, 1-3/8, and 1-1/2-Inch bits