MQF-1000B Double-Edged Side Angle Grinder MQF-1000B the Mechanism of setting tooth adopts suspending way, the pitch we can adjust automatically in the running span to fit the saw blade which has a bigger diameter and smaller cutting head and the complex tooth form. The speed of the grinding head’s running track begins to quickly expedite, but when it is closing to the knife head which automatically turn to slow. And we can adjust the speed and the location to improve the grinding efficiency. Double-Edged Side Angle Grinder’s Technical Parameters: Type MQF-600B MQF-1000B diameter 100-600mm 100-1000mm speed ≤15 teeth/min ≤12 teeth/min pitch 8-50mm 8-40mm Front angle -5°- +15° -5°- +15°