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.

6-lobe geometry designed for a high-torque fit with E-Star fasteners

Large， clear die-stamped size marking is easy to read and cant wear off

Polished， chrome-plated finish easily wipes clean and is highly resistant to corrosion

4 detent grooves provide a secure connection with the drive tool and a drilled through-hole allows locking on with retaining pin

Beveled inner rim of the socket opening helps guide it smoothly onto fasteners

12-piece 3/8 in. drive external star sockets: E4， E5， E6， E7， E8， E10， E11， E12， E14， E16， E18， E20

Includes socket rail