Besonderhede van voorbeeld: 1892057895379885908

English

Cruciform cemented carbide drills grinding: horizontal grinding out a cross, the same length, and the edge inclination remains zero, but significantly increases the chisel edge rake angle.

Chinese

十字形硬质合金钻头修磨:横刃磨出十字形,长度不变,刃倾角仍为零度,但显著增大了横刃前角。