2023 Diamond Drill Bit - Diamond Hole Saws for Hard Materials

Diamond Drill Bit Drill Bits Hole Saws Diamond Hole Saws Drill Bits/hardware Carbon Steel Drill Bit For Glass High Quality Diamond Drill Bit Set: Made of high strength carbon steel with nickel plating surface, these drill bits are durable and precise; Bit head is made of 80 grit diamond coating , which is uniform; This helps a lot to increase the drilling speed and is sharper than other ordinary hole saws. Application: Suitable for use in drill holes on glass, marble, tiles, jars, ceramics, ceramics, granite stone, stone, etc. Design: Center pilot holes and side holes help eliminate waste easily; and surface nickel plating, prolong service life, improve surface corrosion resistance Kind Notice: When cutting hard materials, it is important to ensure that the cutter is kept cool to prevent damage to the material being drilled and premature wear of the cutter; When drilling, water is needed for the lubrication, which can prolong the service life of the bit. Colour: Silver Size: 8mm+10mm+12mm+14mm+16mm+18mm+20mm+22mm+25mm+50mm Delivery quantity: 10 pcs