WTB Small bore hone

[wadu1]

I'm looking for a small-bore hone. I need to clean up some black iron pipe. I need to get to .855 and depth of 2 7/8". I'm at .845 as it sits. If you are wondering why you ask, I'm making a trim jig to make 3 1/2 10ga hulls to cut down to 2 7/8'.

[gramps]

Have you tried a automotive brake cylinder hone?