Plumber Self Feed Drill Bit Set Number of Drill Bits 7 Fractional inch Steel Hex Tubing Entrance Size 7/8 in 1 1/8 in 1 1/4 in 1 1/2 in 1 3/4 in 2 1/8 in 2 9/16 in Overall Length 6 5/8 in Shank Hex Size 7/8 in 1 1/8 in 1 1/4 in 1 1/2 in 1 3/4 in 2 1/8 in 2 9/16 in