Uxcell a15122500ux0439 65mm Diamond Coated Hole Saw Drill Bits Cutting Diameter: 65mm/2.56"; Product Name: Glass Hole Saw Material: Metal, Diamond Particles; Package Content: 1 x Glass Hole Saw Weight: 99g; Shank Size: 10 x 23mm/0.39" x 0.91"(D*L) Total Length: 54mm/2.13"; Main Color: Silver Tone Total Size: 54 x 65mm/2.13" x 2.56"(L*); Side Hole Size: 13 x 5mm/0.51" x 0.2"(L*W)