5PCS Ceramic Glass Hole Opener Domestic Marble Hole Puncher, Punch Diameter: 8mm

1. No water, all dry dozen, cooling wax, hand drill available2. Cooling wax filling full, wax showing silver-white, drill body blue bright, diamond brazing bit, marking line more clear3. Cooling wax filling full wax showing silver-white drill body blue bright drill bit brazing carborundum line marking more clearly4. New upgrade of internal cooling wax without water, high-performance cooling wax, effective heat transfer, heat conduction fast/perfusion volume large/durable, open 30 holes can be used5. New upgraded cooling groove for cutting edge chip removal, design of spiral chip removal groove for cutter head, upgrade large capacity self-cooling groove with fast chip removal, large chip removal and good self-cooling effect6. Durable, the measured drilling ceramic tile open 60 holes without pressure, different drilling material, different number of openings, the higher the speed, the more the number of openings, the recommended speed of more than 2600 rpm, 6 mm/1 cm thick ceramic tile/open 60 holes7. Operation Method: the drill and electric drill correctly connected and fastened, the drill bit drilling surface perpendicular to the drill surface, electric drill acceleration, can slightly shake auxiliary debris, pay attention to the higher speed is not easy to skid8. Advantages of drilling: drilling quickly, can open the hole blind hole, chip removal smooth, good self-cooling effect, suitable for a variety of common requirements for opening9. Application: glass, ceramic tile, marble, ceramics, granite, Jade10. Forbidden Scope: wall, metal, wood, concrete11. Weight: 6mm: 12.5g,8mm: 17.2g,10mm: 21.8g,12mm: 29.2g，14mm: 33.4g,16mm: 33gOperating Instructions:1. Do not touch strong acid and corrosive materials2. Please keep the bit at 90/45 degrees to the surface3. In the process of use, the drilling efficiency can be improved by slightly shaking the auxiliary chip discharge4. It is prohibited to drill holes in materials such as concrete, toughened glass, steel, copper, aluminum, etc.5. Pay attention to the intensity and angle of useWarning sign:1. When the product is used with the angle grinder, the angle grinder needs to change the chuck2. The higher the speed of the more stable, not easy to slip, the more holes; recommended more than 2600 rpm3. Do not recommend the use of CNC type high-precision machine hole; suggest high-power electric drillModel:1. In the processing of marble/granite/agate and other high-hardness drilling materials, the first consideration is high-power models, do not recommend the use of low-power drill2. It is forbidden to press the product by force when it is processed. It is easy for the pressure to be too high, which will aggravate the friction and affect the service life of the product