I have a crush grind mechanism and need to make a pepper mill, however I'm not keen on spending a bunch on forstners that I may not use again (should I not make more mills). So, have any of you bored the mills with turning tools? I'm thinking about using my square edge scraper to get a stright bore. It seems if you bore from both ends you don't have to worry about too much overhang off the tool rest. Have any of you done this?