Uxcell a15121800ux0668 26mm Dia Diamond Coated Drilling Drill Bit Tile Glass Hole Saw 2Pcs, Cutting diameter: 26mm/1"; product Name: glass hole saw Material: metal, diamond particles; Package Content: 2 x glass hole saw Weight: 39G; shank size: 7 x 19mm/0.28" x 0.7"(D*l) Total length: 48mm/1.9" Main Color: Silver Tone