- with tungsten carbide drill

- for drilling of tiles and slabs, porcelain tiles, marble and granite

- not suitable for masonry

   

Attention: Perfect drilling result at a slow speed of max. 150 rpm. Use sponge for water cooling of tungsten carbide drill and diamond core bit. The lifetime of the tungsten carbide drill is limited in granite and porcelain tiles (from abrasion resistance no. 4) to 3 - 5 holes. Not suitable for impact drilling.