Socket 3/8″ Drive 6pt Metric 21mm 423410

Product Description

6-point hex socket for maximum torque transfer to the face of the fastener

Precision cold-forged, hardened and tempered chrome vanadium steel

Fully polished and nickel chrome-plated for durable corrosion resistance

Chamfered ends and thin walls for positive location on fastener

Knurled ring gives grip and control in the hand, and bearing hole provides solid connection to the tool