OldTools Archive

Recent Bios FAQ

262521 Thomas Conroy 2017‑06‑21 Re: Calipers
Ed Minch wrote:
I found an intersting caliper in the accumulation:

https://www.flickr.com/photos/ruby1638/35341445546/in/album-72157685104211466/


Speed nut. I believe they have been a no-cost-difference option on all Starrett
spring dividers and calipers for over a century. I've also seen English dividers
with the same design. I'm surprised that you only have the one; I'd guess that
half of my dividers have speed nuts. I too love them, they really do make
readjusting the dividers faster and easier than the simple nuts. On the other
hand, I have at least friend I respect who hates them, and says that they never
hold. I think, though, that she has never figured out how they work and doesn't
close the speed nuts properly before starting to turn them. Myself, I see no
advantage to the plain form.
Tom Conroy
Berkeley

Recent Bios FAQ