These protractors are used to measure hard-to-get “inner” angles, where a normal flat protractor won’t be able to reach – from just under 10° to just over 160°

I was initially asked to make these for cosmetic surgery work – for measuring undersides of noses… but they probably have other uses as well.


  • Handmade in New Zealand
  • Satin-finished solid stainless-steel – tumble-polished for 2 days
  • Stainless steel machine-screws with brass inserts
  • Bespoke possibilities available
  • Lifetime guarantee – personal service
  • Shipping worldwide
  • They are perfect. A nice blend of laser-cutting and hand work (I can’t imagine how they use a laser to cut shiny stainless steel) – Glen, California
  • It is beautiful and will live on my workbench to be used daily as I apply the principle of the golden mean to my designing – Bob, Vermont
  • Box and calipers arrived safely…very classy. Will make a great gift – Graheme, New Zealand
  • The calipers are breathtakingly beautiful! I will show them off to my potter friends & teachers! – Michael, Australia
  • The caliper set arrived yesterday, and they’re gorgeous!!! – Dianne, Texas
  • They look and work great and I have already used them to help me design a decorative garden fence and gate – Scott, Utah
  • I just got my calipers and they are totally awesome – David, Ohio
  • Caliper and the box look very, very nice – Gerhard, Austria
  • The calliper has turned up and its great:) – Adam, Sweden
  • Received in great shape – very nice work – Scott, Texas

Why buy from Golden Mean Calipers?

Because I make the best quality Golden Mean Calipers in the world.

When you buy from me, you’re buying from the original designer.

You will probably see copies of my designs elsewhere, but the quality is surprisingly bad. I have been making calipers for 14 years now… I collect them… and I go to a lot of trouble to make sure mine are better than anyone else’s.

Everything I produce comes with a life-time guarantee… and if you have any questions, you get to talk to the original designer.

If there’s anything out of the ordinary you’d like… from bespoke logos (or materials) for the case, to specific design-requests, I’m happy to hear what you have in mind

If you have any questions – feel free to get in touch. Nick Taylor

Additional information

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