【Dual-End Flip Design】This 19mm × 21mm dual-head socket features an innovative reversible flip design. One end fits 19mm nuts/bolts, while the other end fits 21mm nuts/bolts. Compatible with standard 1/2-inch drive tools (requires a 1/2" drive extension bar for use), this design minimizes tool changes and boosts work efficiency.
【Premium Cr-Mo Steel】Chrome molybdenum is a kind of alloy steel, which has good resistance to hydrogen corrosion and high temperature, and its comprehensive performance is significantly better than CR-V material. In daily use, this material has good impact absorption performance and is not easy to break.
【High Adhesion Coating & Eye-catching Marking】Unlike traditional black oxide coatings, BLACKROBOT's flip impact socket is electrophoretically coated for superior corrosion and rust resistance for long term use. Laser markings make all models easy to store, read and quickly identify.
【6-Point Design】 The recessed hexagonal nut is easier to embed, which can grasp the stubborn fasteners without falling off. The 6-point lateral drive design prevents the wobble socket from rounding under the high torque output, making them maintain integrity without deformation.
【Wide Application】The Lug nut flip socket can be used together with impact wrenches, torque wrenches and other tools, suitable for most of the automotive and mechanical equipment nuts.