uxcell 3 Pcs Diamond Coated Drill Bit Glass Hole Saw 6mm 15/64" Product Name : Glass Hole Saw;Hole Cutting Diameter : 6mm/15/64" Material : Metal, Diamond Particles;Color : Silver Tone Shank Diameter : 5.5mm/0.2";Total Length : 50mm/2" Weight : 11g Package Content : 3 x 6mm Glass Hole Saw