Office of Steam Forum for Model & Toy Steam Gas & Hot Air Engines

Excellent advice so far, buy as you need them and don't go cheap, if you are working with SAE that is particularly true with 6-32 taps, for some reason they are more prone to breaking than the other sizes.

Many years ago I had a roommate that was really particular about having matched sets of tools and tended to give me a hard time because I had a mixed batch of wrenches etc.
His father was a retired machinist and brought him a box of assorted brands of taps and dies, when he left he handed them to me, saying he would stick with his boxed matched set made offshore. I still have most of the Greenfields and Butterfields 30 years later.