Features: Used for tightening up the mainshaft nut on the end of the gear case output shaft. It ensures optimum engagement of the teeth on the tool and the main shaft lock nut. Made of steel, durable in use and shock-resistant. You can use hammer and chisel to tight up the main shaft nut. Specifications: Color: Black Material: Steel Reference OE/OEM Number: 600300 Product Size: 8.0 * 4.5 * 4.5cm Package Weight: 400g Package List: 1 * Mainshaft Nut Tool