I wish someone somehow could do a ton of experimenting. I seen online bake lite is better. Then bullet proof is better. And how each is better ? Have seen that bullet proof is better but won't jump balls as good as bake lite. Then using bake lite supposedly there is less control as the...
You might be pushing the limit for a 5/16" hole 3-4 inches deep on a shaft that is 12.60 mm. I would go about 2' deep and use a 1/4" pin. And i wouldn't use it for breaking with. Not much of a point for a low deflection shaft for breaking.
This is what i have done with great results. I mount a dial indicator either in the chuck jaws or on the chuck face. Chuck a center drill in a chuck. Indicate the center drill so the tailstock is dead center. I do this in case the chuck, shank, etc. isn't perfect. And those lines on the...