Round Shank Drill Bit Set Straight 10 Number of Drill Bits Carbide Tipped Number of Cutter Heads 2 Overall Length 2 3/8 in 3 in 3 3/8 in 4 in 4 3/4 in 6 in Bright (Uncoated) Shank Hex Size 7/64 in 1/8 in 11/64 in 3/16 in 15/64 in 17/64 in 21/64 in 23/64 in 27/64 in Shank Diameter 7/64 in 1/8 in 11/64 in 3/16 in 15/64 in 17/64 in 21/64 in 23/64 in 27/64 in Shank Length 1 9/16 in