I have ben given a quantity of imperal taps and dies, there is one in the bunch which is confusing me, 'tis a mod marked, 7/32" 24 tpi, can someone enlighten a numbnuts like me pse? kind regards

email (option): woolnough@mchenry.plus.com

I think you'll find its a BSW thread Richard.

thanks for this, I cannot understand why I couldn't find it in my Zeus book, wrong glasses perhaps. Kind regards

email (option): woolnough@mchenry.plus.com