Hole Saw 30mm Hollow Core Drill Bit Tile Hole Cutter Set for Glass Ceramics Porcelain Marble Electroplated Drill Bit Assortment

diamond glass hole saw is a specialized cutting tool designed for drilling clean, precise holes in glass, mirrors, ceramics, porcelain tiles, and other brittle materials. Unlike traditional hole saws, it features a diamond-embedded cutting edge (electroplated or sintered) that grinds through hard surfaces without cracking or chipping.