50-48-1 / N503 / Insert

Foster 58-93R, 54-93 / Gill 500 and 600 / TP-82, TP-94, Carter Tool CT-93-R, Peck-o-matic 631

Fits Following Jaws,

50-22-7, 50-22-8, 147-7, 147-14

J503, BU502, BU503