【Material】: 30 pieces 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.Extra-deep broach accommodates longer fasteners, 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.
