Indispensable App
I’ve been using this app pretty much since it came out and consult it regularly at work. Though I’ve been in the trade long enough to remember most tapping sizes by now, I often use it to identify threads, particularly larger metric threads. It now covers Metric, UNF/UNC and both British and American pipe threads. That covers most threads you’re likely to find these days. Though I did some repairs on a 40 year old fork truck recently, which had some BSF/BSW threads, so for completeness that would be a useful addition. But for most people, this is all you need.
