- External Star Geometry – Shallow external star (E-Star) sockets have an internal 6-lobe geometry designed for a high-torque fit that resists slipping
- Materials and Finish – The socket is made from 50BV30 steel and is hardened to 40 - 47 HRC for strength and durability. The socket is protected against corrosion with chrome plating on the outside and chrome plating supplemented with a clear coat or painted finish where needed for full coverage on the inside.
- Exterior and Interior Finishes – The chrome-plated exterior is highly corrosion-resistant and wipes clean to a mirror finish, and the interior chrome plating is supplemented with a clear coat or painted finish where needed for full coverage
- 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
- 12-pc. 3/8 in. drive shallow external star sockets: E4, E5, E6, E7, E8, E10, E11, E12, E14, E16, E18, E20
- Socket rail
- Patented twist-to-lock design securely holds sockets on the rail
- Keyhole slot mounts to wall or workbench
- Combine multiple socket rails with trays and other accessories