How can you measure the torque by hand?

To measure torque by hand, you can use a torque wrench, which is a tool that allows you to apply a specific amount of force to a bolt or nut. The torque wrench will indicate the amount of torque being applied, usually in units like foot-pounds or Newton-meters. Simply adjust the torque wrench to the desired torque setting, then apply force to the bolt or nut until the wrench clicks or signals that the correct torque has been reached.