HEAVY DUTY TAP AND DIES SET 1/4 TO 1/2 BRITISH STANDARD WHITWORTH- BOXED COMPLETE BSW DESCRIPTION: British Standard Whitworth (BSW) is one of a number of imperial unit based screw thread standards which use the same hexagonal bolt head and nut sizes NO OF SIZE: 05 ( 1/4” TO 1/2” BSW) SIZES: 1/4”, 5/16”, 3/8”, 7/16”, 1/2”, BSW SCREW DRIVER: 1 PC. TAP HANDLE: 1/2" CAP ROUND DIE HANDLE: 1" & 1-1/2" CAP PACKED IN WOODEN BOX |