1 5/16 Inch BSPF HSS Circular Dies 1 5/16 Inch BSPF High Speed Steel Circular Dies High speed steel circular dies for cutting new BSPF, also known as BSPP or G, external parallel pipe threads. 1 5/16 inch outside die diameter High... £19.67 (Inc. VAT) £16.39 (Ex. VAT) Choose Options Compare