RUBI DRYGRES PREMIUM Diamond Core Bit 28 mm (Ref. 06972)

The RUBI DRYGRES PREMIUM 28 mm diamond core bit is designed for drilling holes in hard ceramic tiles and is also suitable for drilling into natural stone (e.g., granite, marble). It is designed for dry drilling using an angle grinder or a drill with the use of a reducer. Thanks to vacuum brazing in the manufacturing process and the use of high-quality materials with a high diamond density, its advantages are high drilling speed and extra long service life. The core bit diameter is 28 mm.

The core bit has side holes designed for cooling during drilling. This helps achieve lower temperatures and extends the core bit’s lifespan. The bit features a segmented diamond pattern, which increases drilling precision. When drilling, it is necessary to apply appropriate pressure to the core bit, because excessive pressure can cause it to overheat and thus be damaged.

Improvements of the DRYGRES PREMIUM series compared to the DRYGRES series:

Faster drilling
More than twice the lifespan
Improved cooling with side holes (Ø 20-85 mm)
Core bit with segmented interruptions (Ø 43-85 mm)