Compact Board With Harness Set: The board measures about 5.9cm / 2.32inch x 3.4cm / 1.34inch and comes with a wire harness and a separate control knob component for compact repair spaces Forward And Reverse: Built to forward and reverse control, this module helps recover direction response for rebuild or maintenance tasks on compatible tool setups Sensorless Drive Layout: The sensorless control design helps simplify wiring and supports a cleaner replacement setup for tool repair work that needs stable brushless motor control Control Board Replacement Role: Use this brushless motor driver board as a repair focused replacement part for cordless power tools when worn control hardware affects startup or direction response Ready For Home Or Shop Repair: Designed for home repair users and technicians, this set supports 18V and 20V brushless tool maintenance that calls for a compact replacement controller, Manufacturer: Msioytog