Professional tool for commercial or occasional use. Every bolt on modern vehicles has a torque setting, and a torque wrench is essential to accurately judge how tight a bolt is. With this torque wrench you can feel and hear when you reach the correct torque. Manufactured from chrome vanadium steel for strength and durability. Micrometer adjustment design. You set the torque in o.5 ftlb increments. Reversible ratchet head all at the flick of a lever on the top of the ratchet. 3/8"drive so any 3/8" drive sockets will fit on there. Total length 320mm. Marked in Nm (20110Nm) and M Kgs (2.0411.22 M Kgs) Includes blow molded case for ways storage and transportation.