Choose the Milwaukee 49-56-5625 1-3/8 in. 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 whole 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.