| Listed in parts books | Not catalogued by year yet |
TAP/DIE SET CEI/BSF HSS
A tap and die set for CEI and BSF thread standards, cut from HSS steel.
This is a tap and die set covering CEI and BSF thread forms, made from HSS (high speed steel). CEI (Cycle Engineers Institute) and BSF (British Standard Fine) are the thread standards you run into all over vintage British motorcycles, so a set like this is meant for cutting or cleaning up threads on that older hardware rather than modern metric or UNF fasteners.
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Our catalog record on this one is brief, just the description and a case note referencing a bike-resistant storage box. We don't have a breakdown of exactly which sizes are included in the set.
If you're chasing a specific thread size for a repair, call the shop and we'll confirm what's in the set before you order.
Sorry if we got something wrong here. If you think this information isn't correct, .