BSF Carbon Steel Taps 1st 2nd 3rd Set BSF carbon steel taps available individually or as a full 1st, 2nd and 3rd tap set. These UK made hand taps are suitable for British Standard Fine threads and are mainly used for cleaning, chasing and repairing existing internal threads. Choose from a... £2.30 (Inc. VAT) £1.92 (Ex. VAT) Choose Options Compare