Any suggestions for supplier (mail order or online) for metric fine taps, specifically 4.5mm x 0.5mm pitch which I find I need to cut for a gas filler valve. The only place I've found is
M4.5? Thats a tough one and very bastard size. J&L don't list any 4.5 in fine, they have plenty of M4 x 0.5 from about £2 up.
Try Tracey Tools maybe.
Wayne....
You could try Tracy tools. They don't have it on their website
Good Luck
Bob
My tracey tools catalogue lists M4.5 x 0.75 but no other pitches in M4.5.
Alan Bain
Cheers Guys, Tracy tools seems to be the concensus! I ground a tool a bit like a boring bar from some 6mm tool steel and cut the thread on the lathe - gently! it is only in brass after all. It's airtight at 50psi so I think I'll get away with it - loctite can't do any harm though!
Tis a b****y stupid size though.
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