Ideal for quickly removing wheel nuts & studs especially if theyre particularly tight and stubborn nuts & bolts in general. It delivers a huge amount of torque for quick & effective operation but is relatively lightweight for comfy controlled use. Impact sockets should always be used with this impact wrench. Massive torque output up to (170Nm). Operates from 12V cigar lighter sockets, portable 12V power packs or most 12V batteries. Includes 12V socket adaptor & 12v battery clips. Also supplied with 2 double ended impact sockets (17/19mm & 21/23mm).