Hole Saw Kit, Bi-Metal, 9-Pc.Diablo, 9 piece, bi metal hole saw kit, includes: 7 8", 1", 1 1 8", 1 3 8", 1 1 2", 2", 2 1 8", 2 1 2" & 2 9 16", snap lock plus mandrel, pilot bit, adapter nuts, 1 2" & 5 8", for quick & easy hole saw changes for maximum job performance, provide ultimate cutting length of 2 3 8" to bore deeper holes in a single pass, features variable tooth design for faster cuts, universal snap lock plus mandrel system fits all hole saws in the range, including