Hexagon 8mm x 5/16" sq.dr. 

HEXAGON DRAIN PLUG KEY 8mm - 5/16"

38321
Draper - Hexagon Drain Plug Key 8mm - 5/16" 38321
Applications BMW back axle,  Ford gearbox, General Motors back axle, gearbox.
This quality  male key can be used with a 3/8"  square drive tool, on drain plugs fitted to back axles, engines, gearboxes and oil sumps.
!
 <<