Pakopiniai: 4-12: 4, 5, 6, 7, 8, 9, 10, 11, 12 4-20: 4, 6, 8, 10, 12, 14, 16, 18, 20. 4-30: 4, 6, 8, 10, 12, 14, 16, 18, 20, 22, 24, 26, 28, 30. Frezavimo grąžtai : 3, 6, 8mm Medžiaga : HSS4241