Aopin Diamond drill bits, hollow core drill bit suitable for glass, ceramics, stone, glass hole saw, diamond drill bit, carbon steel, 50 mm cutting diameter, 1 piece

• ★Key paremeter: cutting diameter: 50 mm / 1.97 inch
• Shank Diameter: 8 mm / 0.31 inch
• Length: 50 mm / 1.97 inches
• Material: carbon steel.

Diamond Drill Bits, suitable for perforating glass, ceramic tiles, floor tiles, marble, vitrified tiles. These diamond drill bits made of high-speed steel that is durable and have a long sevice life, which are high quality and good performance that excellent for accurate hole. Operation: 1. Install the hole opener on a drilling machine such as a hand drill or rechargeable drill. 2. Since this kind of hole opener does not have a centrally positioned drill bit, the hole opener is first inclined at 45° during operation, slow down the speed of the electric drill, and slowly touch the glass stone. 3. A crescent socket is opened on one side of the hole, and the crescent socket plays a fixed role, and then the vertical electric drill starts to work, swinging and cutting faster. 4. Don't go too fast during the hole drilling process, you need to keep adding water to cool the hole opener. Note: Clean water is needed to cool the drill bit when drilling. Good cooling can significantly extend the service life of the hole opener. Do not dry the drill without adding water, otherwise it will easily cause damage to the drill bit. Select the processing material, and do not drill the toughened glass. There will be slight differences in product appearance.