JBF National's standard press fit spring plungers come in your choice of 12L14 steel with a black oxide finish or 303 stainless steel body construction and accompanying 12L14 steel with a black oxide finish or 303 stainless plunger ends. Spring plungers are utilized across of wide variety of industries and products, including woodworking, medical and military applications. Contact a JBF National sales engineer today for further information.