The Gearwrench 51 Pc. 1/4" Drive 120XP SAE/Metric 6 Point Standard & Deep Socket Set, No. 80300P, features the Double-Stacked Pawl technology of the 120XP ratchet. The 120XP delivers 120 positions in 360 degrees for an ultra-narrow, three-degree swing arc while delivering 180 percent of ASME torque performance. The 120XP ratchet has a teardrop low-profile head and a flush-mounted on/off switch for improved access. The sockets feature surface drive technology to reduce fastener rounding. The set includes full-polish chrome sockets with large hard stamp size markings, knurled, full-polish extensions and a storage case.