120XP™ head provides a 3� ratcheting arc to turn fasteners in narrow spaces;Torque accuracy of +/- 3% CW in the upper 80% of wrench capability delivers high performance;Enclosed ratchet head design resists dirt infiltration for continuous and efficient execution;Low profile tube, teardrop head, and flush mounted on/off switch allow better access in tight confines;Scale markings are highly visible and easy to read