
A 23-piece tap and die set, suitable for cleaning and repairing Whitworth (BSW) threads ranging from 1/8""-40BSW to 1/2""-12BSW. Manufactured from carbon steel and supplied in a metal storage case. Whitworth threads are commonly found in classic cars and use a different measuring system from AF or metric equivalents. Sizes: 7x Dies: 1/8""-40BSW, 3/16""-24BSW 1/4""-20BSW, 5/16""-18BSW, 3/8""-16BSW, 7/16""-14BSW & 1/2""- 12BSW14. 7x Taps (taper & plug): 1/8""-40BSW, 3/16""-24BSW, 1/4""-20BSW, 5/16""-18BSW, 3/8""-16BSW, 7/16""-14BSW & 1/2""-12BSW. Also includes a die wrench & and adjustable tap holder. Manufactured from Carbon Steel. Supplied in a metal storage case. For use on classic British cars & motorcycles.