Omall (TM 6mm Diamond Coated Drill Bit Ceramic Glass Hole Saws, Pack of 10 Product Name : Omall Hole Saw;Material : Alloy; Cutting Hole Diameter : 6 mm / 0.24inch;Shank Hole Diameter : 3.5 mm / 0.14inch; Shank Size (Approx.) : 46 x 6 mm / 1.8inch x 0.24inch (LD);Total Length : 50 mm / 2inch; Color : Silver Tone;Weight : 65g; Package Content : 10x 6mm Glass Hole Saw.