TEKTON 3/8 Inch Drive x E20 External Star Socket | SHD12420

• 6-lobe geometry designed for a high-torque fit with E-Star fasteners
• Large, clear die-stamped size marking is easy to read and can’t wear off
• Polished, chrome-plated finish easily wipes clean and is highly resistant to corrosion
• Four 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

Tekton 3/8 inch drive external star (E-Star) sockets are made from 50BV30 steel that's hardened to 40–47 HRC for strength and durability. The socket is protected against corrosion with chrome plating on the outside and clear coat on the inside. The socket has large, stamped markings that are permanently impressed into the material by a roll-stamp die and are as large as possible while still being readable along the socket's curved surface. Detent grooves and beveled edges provide a smooth and secure connection with the drive tool.