This nifty torque wrench is preset to either 1.4nm, 1.8nm or 2.5nm (based on the purchased item) to work with your compatible hot end. It comes with 7mm and 8mm sockets and is compatible with mostnozzles (V6 and MK8). If you are using a CHT nozzle, it requires a 6mm socket which is not included in this set. The crab torque wrench set does include this and is recommended for the CHT nozzle. You can find it here.