Finding obsolete and hard to find taps and dies
John Burridge | 02/07/2014 19:37:41 |
54 forum posts | Hi to all, I am trying to find some very unusal taps and dies, the size required is 1/16" X 62 TPI and they are used in Sturmey archer hub gears. The thread was the old CEI Cycle Engineer Insturtute which used to use this size for cut threads for spokes before thread rolling started. I have tried Tracy Tools which most times they have what you want they have 1/16" taps in 60 and 64 TPI but unfortunatly 62TPI. I have looked at the differances between British teeth per inch and metric pitches but there is nothing that come even close. The part in the SA hub is a cross nut and the toggle chain and joining rod from the other side bolt up to this part and clamp it tight so the hub can make gear selection, |
JasonB | 02/07/2014 20:11:28 |
![]() 25215 forum posts 3105 photos 1 articles | May be worth searching for 16g x 62tpi as the smaller sizes of thread is based on wire gauge giving a dia of 0.064" not 1/16" or even spoke dies/rollers J Edited By JasonB on 02/07/2014 20:15:33 |
Oompa Lumpa | 02/07/2014 20:14:38 |
888 forum posts 36 photos | Like yourself John, I enjoy a challenge. But can't you find a new old stock unit and save yourself panning for gold? If you do find a supplier, please let me know as I often search for the most obscure threads myself. graham. |
Robert Dodds | 02/07/2014 22:28:04 |
324 forum posts 63 photos |
I notice that in MEW 218 there is an advert for Avon tap and die avontapdie.co.uk Bob D |
Cyril Bonnett | 24/07/2014 23:32:13 |
250 forum posts 1 photos |
On his web page he say's that he can supply these tapes and dies, worth an email. |
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