This is a copy of an article that I originally found on the Superior Association of Woodworkers based in Thunder Bay, Ontario, Canada. Their site is here: http://sawthunderbay.ca
It is included here, with their permission as a duplicate of their copy. We do not know who the original author is, so no publication rights are included nor credit given. If you know and can document the original source of this please advise myself, and/or the webmaster of the SAW website so we can authenticate authorship and provide correct credit.
The "Router Collet Maintenance Copy" article is located here: » Safety