Adjustable jaws with locking feature to suit both
    hexagon & octagon wheel bearing lock nuts.
Includes three sets round & three sets square of pins
   to suit lock nuts with pin holes
Suitable for 6Pt lock nut 1-3/4" to 5-1/4" (49-135mm)
    across the flats and 8PT lock nut 1-3/4" to 5-5/8"
   (49-143mm) across the flats.
3set round pin：1/4" (6mm), 5/16" (8mm), 3/8" (10mm)
    3set square pin：1/4" (6mm), 5/16" (8mm) , 3/8" (10mm)