If you are looking for a retaining pin that is built to last, the Proto J10000P1 Impact Retaining Pin is an excellent choice. The black oxide finish ensures that it resists corrosion and rust. This two-piece alloy steel pin has a black oxide finish which helps resist corrosion and rust. It has an overall length of 1 7/8 in., making it suitable for use with impact sockets. With an SAE measurement type, this 1″ drive size retaining pin will fit most impact wrenches on the market today. If you are looking for a retaining pin that can handle your toughest jobs, look no further than the Proto J10000P1 Impact Retaining Pin.