Bosch 2608587144 easy DRY Diamond Drill Bit for Ceramic 14mm The drill bits diamonds are cooled by a vegetable oil based coolant inside the drill bit shank. This coolant flows through the drill bit tip during drilling & cools the diamonds. The coolant is released by the rotary motion of the drill bit & by the volume reduction in the bit body. The diamonds are effectively cooled during drilling. This prevents premature burn-up of the diamonds & increases the lifetime.
Features: No more installing
- no need for water bottle & centring aid No longer necessary to remove the piece of drilled material No time-consuming cleaning of the work area after drilling Self-sealing drill bit; coolant does not leak Easy handling Very long lifetime despite dry use Suitable for: Soft wall tiles through to very hard floor tiles such as fine stoneware [http://www.youtube.com/watch?v=zj Jr 1rx-f SQ] Crucial to working with diamond dry drill bits effectively is that they are handled correctly. It is advisable to apply the drill bit at a slighly inclined angle. After starting to drill the hole, the drill bit is gradually brought into a perpendicular position. The fast drilling rate is enhanced by performing slight circular motions during drilling. The waste material no longer has to be removed, when using the diamond drill bits with diameters of 6 to 14mm, because it is used to stop the coolant supply. In every subsequent drilling application, pressure forces the waste material into the inside of the drill bit & new oil for cooling is fed to the drill bit tip. To ensure the long lifetime, it is important to make sure that only tiles are drilled. Appropriately adapted drill bits should be used to drill holes in other materials. NOTE
- Drill without impact Diameter: 14mm Working length: 33mm Optimum speed: 1500rpm