1. Makina owerengera manambala kuti muwerenge mwachangu komanso mopanda zolakwika.2. Carbide kuyeza nkhope.3. Kusamvana: 0.01mm(Metric);0.0001 ″ (inchi)4. Kuwerengera kowerengera: 0.01mm(Metric);0.001 ″ (inchi)