1、The whole is made of high quality carbon steel forging, overall heat treatment, professional welding, sturdy and durable. 2、The same hex specifications on both sides of the head. 3、The overall heat treatment of the hand plate, the surface of the fine polished mirror plating, so that the surface of the hand board is more elegant, not easy to rust. 4、The wrench L-end socket head is designed for perforation. It can be easily used with screws no matter the length is,wide application. 5、High hardness, large torsion and good toughness. 6、Ball-end wrench, each side is exquisitely crafted, durable and strong,with exquisite workmanship. 7、Ball end wrench is made of carbon steel material, high hardness and large torsion. 8、The ball head can be moved in the range of 25°, which is easy to use in some spaces, and the design is more user-friendly. 9、The surface is bright and beautiful, looks high end and guaranteed quality. 10、The head is turned by automatic accurate lathe, the ball is full and smooth, rejecting burrs.