uxcell Round Silver Tone Glass Hole Saw Cutter 45mm Diameter UXCELL (U excel !) is the sole authorized Seller of uxcell products Product Name : Hole Saw;Material : Metal;Total Length : 53mm / 2.1"; Shank Diameter : 9mm/0.35";Hole Diameter : 45mm / 1.77";Color : Silver Tone Weight : ~64g Package Content : 1 x Hole Saw