The external star sockets are a female 6-lobe geometry designed for a high-torque fit that resists slipping. These sockets are required for E-Star fasteners, which are commonly found on seat mounts, brake system components, and steering columns. Die-stamped markings are permanently impressed into the socket with large, clear size numbers that are easy to read even in low light settings and can't wear off. The socket's polished chrome plating protects against corrosion and wipes clean to a mirror finish. The deepest parts of the socket well, where nickel and chrome layers cannot be deposited in sufficient thickness, are protected with an additional thin layer of clear coat, rather than conventionally-used silver paint, to prevent rust. Set includes a Twist-to-Lock Socket Rail that keeps the sockets securely organized.
External Star Geometry – External star (E-Star) sockets have an internal 6-lobe geometry designed for a high-torque fit that resists slipping
Materials – The socket is made from 50BV30 steel and hardened to 40–47 HRC for strength and durability
Exterior and Interior Finishes – The socket is protected against corrosion with chrome plating on the outside and clear coat on the inside
Large, Stamped Markings – Permanently impressed into the material by a roll-stamp die and as large as possible while still being readable along the socket's curved surface
Secure Drive Tool Engagement – Detent grooves and beveled edges provide a smooth and secure connection with the drive tool
Includes (12) 3/8 in drive external star sockets: E4, E5, E6, E7, E8, E10, E11, E12, E14, E16, E18, E20
