Feature●Variable tooth design delivers faster and easier boring●Snap-lock plus system enables a quick change for entire range●2-3/8-inch vs. 1-5/8-inch cutting depth for one pass and increased productivity●One mandrel (arbor) fits all Diablo hole saws from 9/16-inch to 6-inch diameterDescription Freud-Diablo DHS16SEL Bi-Metal Electrical Set (16 Piece)