Tracy Tools
If it's only a 1-off job then they'll sell you a carbon steel tap that'll do the job - they'll also do HSS if the material's a bit tough. They can supply most common sizes in left-hand thread.
Just watch out if you pay by card - they add a high premium. However, they are VERY fast at dealing with orders sent by post, with cheque. Send it 1 day, you get the goods 2 days later.
David
(or are you talking about 'tap' as in 'valve'? In which case... I don't know!
) [Edited on 19/9/06 by David Jenkins]
