TEKTON 1/4 Inch Drive x E7 External Star Socket | SHD02407

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