The Ryobi Electric Tools 089240073707 Planer Jointer Gear Box Assembly is designed to support smooth power transfer in compatible planer and jointer equipment. It works by transmitting rotational force from the motor to the cutting mechanism, allowing the machine to operate properly during woodworking tasks. This replacement gearbox assembly is suitable for restoring function when the... https://www.wholetoolbox.com/ryobi-electric-tools-089240073707-planer-jointer-gear-box-assembly/089240073707.html