uxcell Hardware 45mm Diamond Coated Tile Glass Hole Saw Product Name : Hole Saw;Material : Metal Cutting Diameter : 45mm /1.8";Shank Size : 10 x 20mm / 0.39" x 0.8" (D * L) Side Hole Size : 15 x 5mm/ 0.6" x 0.2";Total Length : 50mm / 2" Color : Silver Tone;Weight : 40g Package Content : 1 x Hole Saw