FLEX L3403 VRG Lightweight Circular Polisher+BUFFER with PADS & BACKING PLATE IN ONE SUPER DEAL (6 ITEMS) FLEX seven-fold microprocessor electronics: with consistent speed control by tachometer generator, soft start, accelerator trigger switch, restart protection after power interruption, overload protection, temperature monitoring, and speed selection High-powered motor: can handle extreme loads Spindle lock: for easy disc changes Quality shut-off carbon brushes: if the carbon brushes wear down, the motor will be automatically switched off and thus protected from damage Bail handle