The Milwaukee 47PC SAE & Metric 1/2 in. Drive Ratchet & Socket Set offers better access in tight spaces & maximum tool strength. The 90-tooth ratchet tool offers 4of arc swing & a slim profile design, so users can work in tighter spaces. The Milwaukee socket set features an innovative wrench-compatible socket design with 4 flat sides to help prevent rolling. The 1/2 in. drive ratchet has sockets with sizes laser engraved into the flats for easy-to-read visibility. The optimized socket geometry additionally helps reduce bolt rounding & stripping. It includes a removable inner designed to be stored long-term in a steel storage chest & a durable carrying case for ultimate portability. The sets accessories guarantee users have what they need to tackle every job, both in the garage & on the jobsite. This Ratchet and Socket Set is backed by a lifetime guarantee. Milwaukee SHOCKWAVE Impact Duty Socket Set features the boldest, longest-lasting markings & extreme impact durability in high torque applications. Engineered with high-strength forged steel for optimized performance in heavy-duty applications. The non-slip hex geometry prevents fastener rounding. The Milwaukee dual-hole design & ring groove allow for easy socket attachment & removal. All Milwaukee SHOCKWAVE Impact Duty Sockets & Extensions are backed by Milwaukee's Lifetime Guarantee & meet ASME industry standards.