3/8in. Drive, Standard Hexagon Bit Socket, 4mm, Metric, Chromed Finish

Often used in the automotive and aerospace industries. The weight to strength ratio ensures the reliability and accessibility that is important in this type of environment.

Features and Benefits
• Made from chrome vanadium steel, fully chrome plated with a mirror finish and fully aluminium-free
• All have ball retaining grooves

Standards Met
• Conforms to DIN standards