there are several models of the drill doctor - they work OK, but the older
ones have a problem holding a consistent relief angle - sometimes you get
negative relief and the drill doesn't do anything. But, it's a lot cheaper
than the $6000 Darex

"tom" wrote in message
news
not quite "woodturning" but related ...

http://tinyurl.com/yl4f8pe

or equivalent

comments?