● Using with the revolve grinding type that precision is higher more than additional grinding type. It can add multiple effects.
● Grind interval ring、round spacer...etc, it is fast and higher efficiency.
● Grinding precision is very high, within in 0.001MM.
● It can continuous to change revolving fast of the magnetic chuck in any time.
● It can change other magnetic chucks or mold set.
● Step-less speed-change：0~180 R.P.M/min。