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 Diamond Plus™ threaded hole saw features large slot geometry for easy plug removal. Designed as the single cutting solution for all tile, stone and glass applications, Diamond Plus™ offers the lowest cost-per-hole on the market. Use it with standard hole saw arbors or with the angle grinder adapter (49-56-7105) or retractable starter bit with large arbor (49-56-7135) for even greater productivity and ease of use.