The set of 4 RUBI DRYGRES 4DRILL diamond drill bits is designed for dry drilling in porcelain, stoneware and natural stone tiles. The set contains crowns with diameters of 6, 8, 10 and 12 mm. With Ø 6-8 mm drill bits it is possible to drill to a depth of 36 mm, with Ø12 mm up to a depth of 40 mm. It is clamped by means of a hexagon to a cordless or electric drill. Drills need a minimum drilling speed of 1000 rpm.

Special vacuum production technology guarantees excellent durability and resistance of the crown. The crowns contain wax for cooling during drilling. The wax can be easily refilled.

The package contains crowns with diameter:

6 mm
8 mm
10 mm
12 mm