Flat low milling cutter in the use of high-speed processing, due to speed and feed rate too fast, easily lead to corner cutting edge is not suitable for high-speed processing; ball knife is used in the current high-speed processing quite frequent, but In some respects, it is not applicable.

  When you use the ball knife when the cutting line speed will be due to the different contact points and has been changing, the relative tool life will be greatly reduced, but the ball head knife for processing; round nose knife itself is the most suitable In the high-speed processing. Because it has a corner of the characteristics of the crack is not easy and the stability of the cutting line speed, are flat low milling cutter and ball milling cutter can not match.