TEKTON 1/4 Inch Drive External Star Socket Set with Rail, 8-Piece (E4-E12) | SHD90115

Includes 8-pc. 1/4 in. drive external star sockets: E4, E5, E6, E7, E8, E9, E10 , E11, E12; 8 in. gray socket rail 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 sockets are made from 50BV30 steel and hardened to 40-47 HRC for strength and durability Exterior and Interior Finishes - The sockets are 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 Socket Rail Organization - The twist-to-lock clips on the rail holds sockets securely and can be repositioned anywhere along the rail