Those are hard to find used and when you do find one are not cheap. It may be worth your while to shop around and buy new.

I would say that his method is sufficient if he has nice clean lines at pert near 90. Maybe a quick diagonal check with a pocket tape and it's more t...

Kind of off topic but I want to congratulate Wendell. The transition to the new forum went real well....unlike that other forum that lost all our old...