Posted by Bob In Indy [70.88.69.206] on Wednesday, March 05, 2014 at 11:28:55 :
In Reply to: Question posted by public@SlateCreekEngineering.com [72.47.153.112] on Wednesday, March 05, 2014 at 09:44:56 :
Cut the slot as deep as the hole you are polishing. We do this all the time here at work. We polish the inside of 5" stainless tubes. We use a 1/2" rod and put a whole sheet of 120 grit paper in it.
Bob Ragan