I need a general reference book or at least some good wall charts to start with.
I mostly need tap, drill, clearance sizes, metric conversions, thread form details, stuff like that.
Characteristics of various grades of steels and other metals would be a nice bonus, but not crucial to me at the moment. I may eventually branch into annealing, hardening, case-hardening, and tempering small home-built tools, and would be happy to buy a more skill-specific library then.
Is the (expensive!) Machinery's Handbook the be-all and end-all for that sort of thing or is there a lot of overly technical stuff in it that would be never used very much?
How often do you guys actually refer to it, or do you recommend any other particular reference books or pocket references instead?
I'd rather spend 25 bucks than 115, of course, but only if most of you find it (M.H.) somewhat less than indespensible.
I'd appreciate your opinions ...
Ron