Does anybody have any experience with these types of demagnetizers? Are they worth the money? I only need them for screwdrivers, sockets and some bolts occasionaly.
http://cgi.ebay.com/Demagnetizer-Mo...in_0?hash=item3354823536&_trksid=p3286.c0.m14
http://www.use-enco.com/CGI/INSRIT?PMAKA=285-2505
http://cgi.ebay.com/Plate-Demagneti...in_0?hash=item5633f5f9e6&_trksid=p3286.c0.m14
http://cgi.ebay.com/Demagnetizer-Mo...in_0?hash=item3354823536&_trksid=p3286.c0.m14
http://www.use-enco.com/CGI/INSRIT?PMAKA=285-2505
http://cgi.ebay.com/Plate-Demagneti...in_0?hash=item5633f5f9e6&_trksid=p3286.c0.m14

