Is there such a thing as a left handed tap (the thing for cutting threads in tube, not the type for the sink) or am I missing some technique for using
them backwards? All the sets I've seen for sale don't state whether they are right or left hand thread.
Cheers, Chris
[Edited on 1/25/2005 by ChrisW]
There is such a thing as a left hand tap, usually at great expense. What size are you after as I have a few.
Yes left handed taps exist.
See here for some:
http://www.uni-thread.com/tdmetric.html
Most sets you buy are standard right hand thread taps. Left handed ones tend to be specials.
Cheers,
David
what you want to tap,friend runs an engineering shop,could probly run it up on lathe
You could try Tracy Tools (do a Google) - they stock a huge range of taps and dies in all sorts of types and sizes. Their standard prices are for
carbon steel taps, then +100% if you want HSS, and/or +100% for left-handed (if available).
One hint - don't use a credit card... they don't like the surcharges from the card companies, so charge a high premium to buyers. Send a
cheque with your order and you'll get the tools return of post about 2 days later. A really good company to deal with.
David
Thanks for the suggestions guys. I'll have a measure up and see what I need. It's for fitting rod end bearings into tube (kind of like
Locost trailing arms) so I'm guessing M10 or M12 sort of size threads.
Chris
we use 1/2 unf r h and left hand threads on our wishbones for adjustment,
l / h taps tend to be really expensive the last one i bought was £64 i think
could make you some bosses up if that helps
going to 1/2 inch unf is easy as you only have to drill the wishbone bracket holes out .5mm
regards
marc
[Edited on 24/1/05 by marc n]
Right guys, been looking at the rod ends in Demon Tweeks (although I guess there are better places to get them from).
For those that hadn't guessed, these are for replacement trailing arms for an XR2 track day car. They're just like Locost trailing arms,
except there is only one each side (the suspension strut keeps the axle upright)
The bush that this is to replace has an ID of 10mm which I guess is the deciding factor in which bearing I choose. The only 10mm ID bearing listed is
14mm wide, whereas the bush is 48mm. Do I just pack it out with washers or do I need a proper spacer?
Do I need to ensure the bearing stays at 90 degrees to the mount or will it hold it's own position?
Is 21kN 'radial static load' enough? Car weighs about 800kg
Finally, has anyone got an M10x1.5 left hand tap they would lend me? 
Sorry for all the questions. First time I've used anything as complicated as this!
Cheers, Chris
Nick Skidmore, (who posts on here) supplied me with a LH M12 tap to suit the rose joints I purchased from him. The tap was about £12 if I remember
correctly and of excellent quality.
Mick
Nick also frequents the racecar forum i believe..
Ned.
Thanks for the recommendation guys, I'll look him up. Anyone comment on my other points?
Ta, Chris
quote:
Originally posted by ChrisW
Right guys, been looking at the rod ends in Demon Tweeks (although I guess there are better places to get them from).
For those that hadn't guessed, these are for replacement trailing arms for an XR2 track day car. They're just like Locost trailing arms, except there is only one each side (the suspension strut keeps the axle upright)
The bush that this is to replace has an ID of 10mm which I guess is the deciding factor in which bearing I choose. The only 10mm ID bearing listed is 14mm wide, whereas the bush is 48mm. Do I just pack it out with washers or do I need a proper spacer?
Do I need to ensure the bearing stays at 90 degrees to the mount or will it hold it's own position?
Is 21kN 'radial static load' enough? Car weighs about 800kg
Finally, has anyone got an M10x1.5 left hand tap they would lend me?
Sorry for all the questions. First time I've used anything as complicated as this!
Cheers, Chris
rodend (it's impossible to say if the rod end is up to the task just from
the figures you quoted...many more factors involved), but a 10mm rod end for a trailing arm (radius rod?) sounds somewhat on the light side. either
side of the rod end. . 
just for reference, i have an M24 l/h thread tap, just incase anyone needed one.
it came from the harrogate show, in a 8 taps for a fiver deal. i couldn't find 8 i wanted so i threw in the grand daddy. its a good show
piece.
it might help someone, maybe
tom
quote:
Originally posted by indykid
just for reference, i have an M24 l/h thread tap, just incase anyone needed one.
it came from the harrogate show, in a 8 taps for a fiver deal. i couldn't find 8 i wanted so i threw in the grand daddy. its a good show piece.
it might help someone, maybe
tom
