Made of high quality chrome vanadium steel and the surface are hardened and chrome plated, offering comprehensive corrosion protection. The push-button release on the back allows quick and easy replacement of the lever reversible ratchet. The quick release design allows the socket to be installed or changed quickly, which provides maximum tightening and saves your strength. Fine-toothed ratchet with 72 teeth, extension 76mm, holder, reversible ratchet 1/4 "and socket wrench set hexagon: 4, 4.5, 5, 5.5, 6, 7, 8, 9, 10, 11, 12, 13 mm. The included reversible ratchet is finely toothed with 72 teeth and offers more efficiency and can save you time and energy. You can quickly change the screwing direction with the lever on the head. Ergonomic and soft handle for comfortable feeling, the design of the holder is convenient for storage and not easy to lose.