【Material】: 22 PCS Impact socket set are made of chrome vanadium steel alloy (50BV30),with a black phosphate protective coating,have good hardness and toughness.
【Design】:High-torque, 6-point opening grips flat sides of fasteners, not corners, preventing round-off.Engineered for use with impact drivers.
【Clearly Size】:High-contrast size marking is permanently laser etched and easy to read, even in low light.
【Easy to carry】:Our Socket Set come with a heavy duty blow molded storage case, easy to carry, transportation and safe storage.