[Linked Image]

The flutes you see cut in the guide and expand when the guide is tightened. This locks the guide into the bore and keeps everything aligned. The brush is there to hold the guide while it's being tightened.
[Linked Image]

The only draw back is you need to buy different guides for different bores. I don't think they cost too much though.

http://www.mansonreamers.com/

IMO, there is a difference in a polish and a re-cut.

Last edited by TC1; 05/30/15.