uxcell Glass Tile 11mm Cutting Dia Diamond Coated Hole Saw Tool 4 Pcs Product Name : Glass Hole Saw;Main Material : Metal,Diamond Particles Cutting Hole Diameter : 11mm/ 0.43";Shank Diameter : 7mm / 0.28" Total Height : 50mm / 2";Color : Silver Tone Weight : 40g Package Content : 4 x Glass Hole Saw