Choose the Milwaukee Diamond Plus Hole Saw for up to 10X longer life when cutting tile. stone and glass. Diamond Plus Hole Saws deliver best-in-class performance. 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.