The torque wrench, code 08.06411-0021.0, is a vital instrument in the toolkit for maintaining MAN L21/31 engines. Used to apply precise torque to bolts and nuts, this tool helps prevent overtightening or under-tightening, both of which can lead to engine damage or failure. Accurate torque application ensures optimal sealing, component lifespan, and safe engine operation, making the torque wrench indispensable for high-performance marine and industrial engine servicing.