Tools & Gear Taps & Dies Button Dies

BSB (BRASS)RITISH STANDARD BRASS Brass tubing has a uniform wall thickness - irrespective of the tube diameter - therefore any thread cut on - or in - it needs to have the same depth - so 26 TPI is standard on all BSB diameters. BSB is often confused with BS Cycle thread - the difference being that brass thread has an angle of 55 deg; whereas Cycle is 60 deg;. Manufactured from HSS this general purpose button die is designed for use in medium tensile materials .