Grades Mine, drilling, cutting stone

Hard grade. It is suitable for marble quarrying and for boring of homogeneous very hard rock.

Medium-hard grade with high tenacity. It is suitable for marble quarrying and non-homogeneous medium hard rock drilling.

Grade suitable for medium compact rocks drilling and working. It is suitable also for asphalt removing.

Very wear-resistant grade. It is suitable for abrasive medium hard rocks quarrying.

Very tough grade. It is suitable for non-homogeneous medium-hard rocks boring and working.

Hard grade. It is suitable for marble and similar stones.

Hard grade. It is suitable for travertine and similar stones quarrying and for bushammers.