There's a special shelf in my office & 'most every day i look up and give a little thought of thanks to PM member PeterM for the thread mics, standards, and anvil sets (metric, inch, and whitworth) he indulged me with. :)Quote:
.... a new thread micrometer from Mitutoyo or Brown & Sharpe is about $1000 if you include a range of anvils. Try to find used tools that weren't actually used...
I've cut plenty of threads in various forms but not qualified to discuss thread measurement, yet; so this "thread" and information is very much appreciated. Especially enjoying apestate's discourse.
I will say that before I was outfitted so luxuriously, the fast and dirty way to compare OD threads was over wires, any near-size wires (or same size drill bit shanks), so long as the thread being cut came out the same as the measurement over the same wires on the thread being compared.