107PCS Bit Socket Set, 1/4", 3/8" and 1/2" Drive, Hex/Torx/Tamper Proof Torx/E-Trox/Long Ball End Hex, CR-V, S2 Steel, SAE/Metric$$Tools & Hardware Other

The socket base is made of heat treated Chrome-Vanadium Steel, and the bit is made of S2 Alloy Steel. Which for professional and durability. Set Includes: 107pcs 1/4", 3/8" and 1/2" drive Hex/torx/tamper proof torx/E-trox/Long ball end hex Rounded corner design increases the contact surface and protects the tool from wearing. High contrast and specific size marking for identification. It helps you select the size easier. It comes with a sturdy and convenient storage case. Keep each piece in the proper position. Meets or exceeds ANSI performance standards.