BA Carbon Steel Taps 1st 2nd 3rd Set BA carbon steel taps available individually or as a full 1st, 2nd and 3rd tap set. These hand taps are suitable for British Association threads and are mainly used for cleaning, chasing and repairing existing internal threads. Choose from BA thread sizes... £2.42 (Inc. VAT) £2.02 (Ex. VAT) Choose Options Compare