SODIAL(R) 18mm Cutting Diameter Hole Saw Drill Bit Cutter for Glass Ceramic Tile Product Name : Hole Saw;Material : Metal Cutting Diameter : 18mm / 0.7";Shank Size : 8.3x 22mm / 0.37" x 0.9" (D * L) Total Length : 52mm / 2";Color : Silver Tone Weight : 20g Package Content : 1 x Hole Saw