Material: The socket set is made of quality steel and undergoes high-frequency quenching treatments to improve hardness and increase durability. Advanced Design with Wide Range of Sizes: Curved edges system to reduce corner round-off. Set includes commonly used sizes ranging from 10 to 24 mm. Unique Design: The hexagonal reinforced inner wall design increases the contact area between the wrench and the nut to increase friction and reduce wear. Wide Application: Our socket wrench set is suitable for various tools such as electric hand drill, impact drill, wind batch, ratchet wrench, elbow rod, etc. Convenient Storage: All parts are well packed in a plastic box for convenient storage and transportation. Notice: 1. Actual color may be slightly different from the image due to different light effects. 2. Please allow 1-3 cm deviation due to manual measurement. Size: 10 - 24 mm Material: Steel Package List: 1 x 1/2" Impact Deep Socket Set