This item is a genuine replacement part that is intended to be used with impact wrenches and air hammers. The steel ball fits into a slot on a part assembly and is used to reduce friction between the assembly and the housing. The ball is available as an individual replacement part.
This is an authentic Chicago Pneumatic replacement part, sourced from the original manufacturer for use with impact wrenches. The special o-ring is commonly used to seal the connection between the reverse valve and the air regulator. This o-ring is available as an individual replacement part.