Attributes . Metal Gauge: .019"; End Hole Size: 1/2"; Stnd Ind Part# JJ; Ribbed Die: R36 , Plain Die: P37 (These dies are for use with the 5111A and 1765A ferrule machine. Other sizes are available.). Bore/Crimp Diameter: 0.550" (Plain die bore diameter can be used as crimp spec ?.005) . Names