4. Excellent Steel: The square tap socket is made of Carbon Steel, with black phosphating finish, has high strength, impact resistance, no deformation, and long service life. 1. Tap Socket Set: Includes 9 pieces tap sockets, with M6, M8, M10, , M14, , M20, M22, and M24 specification, to meet different tapping needs, and have a wide range of applications. 3. Convenient Use: The tapered male square driver and chamfered female square driver quickly align the socket with the fastener, with slim design that allows for easy entry into narrow space. 2. Specifications: These tap sockets have a standard square port design, with 1/2 inch drive, connected to national standard machine tap, suitable for electric, pneumatic or hand wrenches. 5. Clear Marking: With fine processing, this tap socket features etched marking that provide high contrast, making it easy to read even in low light conditions, reducing operational errors., Weight: 1.06262810284 Pounds, Manufacturer: Awwertse