Drillingperformance is stable, accurate size and efficiency.
钻孔性能稳定，尺寸准确、效率。
2
To raise drillingperformance of new micro-drill, a novel method was advanced for reginding of chisel edge.
为了提高新型微钻头的钻削性能，提出了一种适合于微钻头的横刃修磨原理及方法。
3
Providers rotation torque to 17,500 ft-lbs (23,727 Nm) with variable rotation speed to 180 RPM for exceptional horizontal and direction drillingperformance.