F@ck, I just realized I measured the length of a new chain tensioner shaft I made for my chain box on my 911 with a chinese made electronic caliper!
I guess an engine drop is in order this weekend. That shaft may be off by .0005" in length. D@mn.... If only I had read Charle's wise words two years ago when I put those new shafts in!
Hmmm... I used a Mitutoyo micrometer to check the diameter of the portion I sized for the press fit, so I should be OK, but Charles sounds like he is a pro, so I better tear it down.
I better re-make my aluminum fuel tanks for my airplane also as I used a HF bead roller to form the tank strap beads near the ends of the tank.
Charles, no one here is suggesting that you should stock your mechanic or machinists tool boxes full of HF tools, but to claim they ALL are worthless for ALL odd occasional jobs is just silly!