Uxcell Diamond Coated Drill Bit Marble Glass Hole Saw, 6mm, 6-Piece Product Name : Glass Hole Saw;Main Material : Metal Cutting Hole Diameter : 6 mm / 15/64inch;Shank Hole Diameter : 4 mm / 0.16inch Shank Size (Approx.) : 48 x 5.5 mm / 1.9inch x 0.2inch (LD);Total Length : 50 mm / 2inch Color : Silver Tone;Weight : 20g Package Content : 6 x Glass Hole Saw