uxcell 120mm diamond coated hole saw drill bits Glass Tile Ceramic Marble Cutting Diameter: 120mm/4.72"; Product Name: Glass Hole Saw; Material: Metal,Diamond Particles Package Content: 1 x Glass Hole Saw; Weight: 312g Shank Size: 10 x 20mm/0.39" x 0.79"(D*L); Total Length: 52mm/2.05" Main Color: Silver Tone; Battery Included: No Total Size: 52 x 120mm/2.05" x 4.72"(L*Max.D); Side Hole Size: 16 x 8mm/0.63" x 0.31"(L*W)