Uxcell a15121800ux0669 26mm Cutting Dia Diamond Coated Drilling Bit Tile Glass Hole Saw 3Pcs, Cutting diameter: 26mm/1"; product Name: glass hole saw Material: metal, diamond particles; Package Content: 3 x glass hole saw Weight: 57G; shank size: 7 x 19mm/0.28" x 0.7"(D*l) Total length: 48mm/1.9" Main Color: Silver Tone