Elora 3/8" Drive Bi Hexagon Socket Metric 3/8" 10mm

This 21mm bi-hexagon socket with 3/8" square drive is the largest in the Elora metric range, providing maximum capacity for substantial fasteners on commercial vehicles, heavy machinery, and industrial equipment.

The 21mm size is commonly specified for wheel nuts on larger vehicles and heavy-duty mounting applications where significant torque is required.