Milwaukee diamond max hole saw 5-piece set offers users up to 10x longer life when cutting tile, stone, and glass. This set includes (1) 3/16in., (3) 1/4in., and (1) 5/16in. Diamond hole saws. Diamond max hole saws deliver best-in-class performance, with higher grade diamonds for maximum heat and fracture resistance. An improved continuous brazed edge provides clean, superior joint strength, and better diamond retention when cutting hard, abrasive materials. One-piece hole saw has a 1/4in. Quick change hex shank and features a large slug ejection slot. Designed as single-cutting solution for all tile, stone, and glass applications, diamond max offers lowest cost-per-hole on market.