| Specifications: These drill coated hole saws are made from steel and nickel coated material, the drill head is covered by diamond particles, sturdy. Can drill a complete clean and accurate hole from hard surface, no broken edges and no tremor phenomenon, long service life, durable. Hole saw set can be applied on porcelain, glass, tile, ceramics, stone, granite and other hard surfaces, for most common standard electric drillers. Type: Hole Saw Drill Bit Material: Electroplated Diamond Quantity: 10Pcs Production Process: Electroplating Features: Diamond Coated, High Strength, Multiple Uses, Accurate Hole Diameter Range: 8mm/0.31", 10mm/0.39", 12mm/0.47", 14mm/0.55", 16mm/0.63", 18mm/0.71", | |