-for all common angle grinders with M14 fitting (suitable for e.g. Parkside, Bosch, Makita, Metabo, Black & Decker) -For dry drilling in stoneware, granite, marble and similar materials -Drill bit body made of high quality carbon steel, diamond coated cutting edge -In a storage tube -diameter: 30/68mm -2 pcs. -Rated speed: max. 13300 rpm -Working depth: max. 35 mm -diamond core bit set (2 pieces) -30mm: Approx. 115g -68mm: Approx. 288g