4" UNF Carbon Steel Circular Split Dies Thread - UNF Size - 4" external round die sizeCarbon steel for cleaning out threadsUK Made A B C 2" 4" 12 1 3/4" 4" 12 Please Note: Specifications given are intended as a guide only. If critical to your project please check... £79.58 (Inc. VAT) £66.32 (Ex. VAT) Choose Options Compare