At last a Whitworth tap and die set for those working on early British cars and motorcycles Die:- 1/8-40Bsw 3/16-24Bsw 1/4-20Bsw 5/16-18Bsw 3/8-16Bsw 7/16-14Bsw 1/2-12Bsw Tap:- 1/8 Plug & Taper 3/16 Plug & Taper 1/4 Plug & Taper 5/16 Plug & Taper 3/8 Plug & Taper 7/16 Plug & Taper 1/2 Plug & Taper.
