Milwaukee Diamond Plus™;;; 5/16" Hole Saws deliver best-in-class performance when cutting tile, stone and glass. With higher grade diamonds for maximum heat and fracture resistance. An improved braze provides superior diamond retention when cutting hard, abrasive materials. The One-Piece Hole Saw has a 1/4" quick change hex shank and features a large slug ejection slot. Designed as the single cutting solution for all tile, stone, and glass applications, Diamond Plus™;;; offers the lowest cost-per-hole on the market.