"1" button, the equipment running, press the" o" button, equipment stop working. 6. Timer: setting and display the polishing time 7. Counter: record grinding number, if want to recount, can press the reset button. 8. Heavy hammer: adjust heavy hammer position, adjustable grinding pressure, a total of three different gear is available. 9. Compaction pin: the pressure in the center, to grind fixture grinding fixture put some pressure. 10. Prevent turn pin: insert in jig anti turn groove, prevent grind chassis rotation.
