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I am finishing up this custom OM 7-string model for my son. It will have low A/B string. Probably .060 or close to it. He plays 7 and 8 string electrics and asked for this design.

I've made it an OM with Martin's 30's era bracing patterns so am fondly labelling it "Nineteen Thirty Seven String."

The question: I can't find 7 tuning machine sets or any that sell individual tuning machines. Certainly they must be available? Any hints? I'm not wanting to buy two sets just to put 5 in a drawer. The extra peg is on the top of the headstock so need a bass side spare.

I've made the neck wide to have regular spacing between the strings. It will be very interesting to hear this build and to see how it feels.

Carpathian Spruce / East Indian Rosewood

A repair shop / tech will likely have some takeoffs in their spares box, where someone was upgrading. You'd have 6 brand new and one used. Or they may have orphan sets, where they purchased a set when in a similar situation and only used one or two.

Quick google shows these are sold individually -

https://www.musiclily.com/guitar-individual-key

https://hipshotproducts.com/products/gr ... g-machines

thanks. those searches helped me figure out how to search for 3x4 sets. I was just surprised that I couldn't order singles from the usual suppliers.

I found that I could order direct from Schaller which are my favorites.

https://schaller.info/

Completed 7 string.