Grąžtas kobaltas, metalui 7,5x109mm KEIL

1 1.5 2 2.4 2.5 3 3.2 3.3 3.5 4 4.2 4.5 4.8 5 5.5 6 6.1 6.4 6.5 7 7.5 8 8.5 9 9.5 10 10.2 10.5 11 11.5 12 12.5 13

109