This is a manufacturer sourced replacement part designed for use with Chicago Pneumatic ratchet/wrenchs. This o-ring provides an air-tight seal for the valve. Over time this o-ring will shrink, become brittle and crack allowing for air leaks. At that time it should be replaced. It is made out of rubber and it is sold individually. Replac...Read moreing this item you would need hex key/allen wrench and pliers to replace this item.
This is a genuine manufacturer-sourced part which is specially designed for Chicago Pneumatic impact wrenches. It is an identical replacement for a missing or worn o-ring that helps to provide a tight seal between connected components, please make sure to refer to the appropriate diagrams of your model for the correct location and applica...Read moretion of this item. Keep in mind this high-quality o-ring is made of durable rubber and is sold individually.