Apply high-performance intelligent microprocessor control chips, 

constant speed closed-loop drive control, that is, no-load and full load speed changes within a range of ≤ 5;

BF type Electrical safety design and 100-240v wide voltage input design; Automatic recognition of power handle; 

Forward and reverse speed manual/foot control switch and reverse sound prompt;

Torque overload warning and fault alarm prompt;

The power handle of the driving grinding head has a 0.2S quick stop function when working;