uxcell Diamond Coated 28mm Dia. Glass Hole Saw Cutter Tool Product Name: Glass Hole Saw; Hole Saw Diameter: 28mm Shank Bit Size: 25 x 8mm (L*D) Total Length: 56mm; Material: Metal, Diamond Particles Coated Color: Silver Tone; Weight: 37.3g Package Content: 1 x 28mm Glass Hole Saw