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Post by richardjg on May 9, 2007 15:12:04 GMT
Hello,
I'm desperately trying to get hold of a left hand 1/4" 32 tpi ME (55degree form) tap and die.
Anyone able to help?
Thanks & Regards
RichardG
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Post by dickdastardly40 on May 9, 2007 15:27:45 GMT
Richard, Have you tried Tracy Tools in Dartmouth or the Tap and Die company in Londin N15? www.tapdie.com/tracytools.com/No affiliation, usual disclaimer Al |
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Post by richardjg on May 9, 2007 16:29:55 GMT
Thanks Al, I tried to phone them today, unfortunately they close on wednesday. Will try later. They do list ME taps and dies, the problem might be the left hand attribute.  oops! Just noticed you also suggested tapdie.com. Yes, tried them, the gentleman there said I hadn't got a chance in hell of getting the pair. Doh! Would love to prove him wrong ;D Regards RichardG |
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Post by steammadman on May 9, 2007 19:48:18 GMT
Go to Harrogate on Friday, look for all the shiny new badges
Go to "TRACY TOOLS STAND", they will supply and with a smile.
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Post by dickdastardly40 on May 10, 2007 6:43:28 GMT
Richard,
Just a thought, do you definitely need ME or can you get away with a 1/4 UNF if that exists in LH. Let's face it, is it worth chasing your tail for something that maybe doesn't exist when UNF will do the trick but not look quite to scale? Who will know and can it be seen? Do you need the 32 TPI lead for a particular reason.
Only Ideas
Al
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Post by spurley on May 10, 2007 7:30:11 GMT
Hi Richard
It depends on the application I suppose? I am guessing this is for a reverser screw? If it is then I think you will find a coarser thread (less TPI) more user friendly and will not 'show' anyway.
Cheers
Brian
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Post by richardjg on May 10, 2007 10:40:45 GMT
Hello,
Thanks for all your help and suggestions. I am making a new spindle for my computerised engraving machine and it requires an internal thread cutting of the size mentioned. This thread accepts the cutter holder, which is why it has to be left hand thread. I have looked at a similar sized threads and can't find one close enough for it to be compatible. The machine is american, so don't know why they've chosen this particular thread. I suppose I could cut on my lathe, but would certainly be tricky, a tap is the answer and am sure there must be one some where. I'm about to phone Tracy tools.
Regards
RichardG
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Post by richardjg on May 10, 2007 18:33:36 GMT
Tried Tracy tools.
Nope!
RichardG
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Post by chameleonrob on May 10, 2007 20:15:44 GMT
If its for one (or limited) use you could try to make one. I'm going to try to make one for when I'm tapping threads for firebox stays. On a length of 1/4 silver steel turn the thread on the lathe, taper a portion of it, cut grooves it it with a dovetail cutter, harden, temper and carefully stone a sharp edge.
I haven't tried to made a tap yet but I have made a die when I had to solder a right angle directly onto a blower ring and got solder onto the thread where there was no chance of getting a normal die in to cut out the thread again. the die was made from 3/4" silver steel rod, drilled, tapped, hardened, tempered and cut in four with a thin angle grinder disk.
rob
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