The Britool 1/2 inch 12-point sockets (metric) are crafted from chrome vanadium steel and finished in high chrome. The OGV® profile allows tightening torque to be applied to the sides rather than to the angles of the nut. This product is for manual use only.

ISO 2725-1, DIN 3124, ISO 1174-1, ISO 1711-1, ISO 691.

The Britool BRIE117064B Socket 12 Point Standard 1/2 inch Drive 21mm has the following dimensions:
Size: 21mm
Length: 38mm
Weight: 92g