Don't want to be harsh... but we don't send people to other boards. That in the user agreement. AND... that's normally on any chat board. But... since this is a friendly board... the first warning is just an FYI.
Besides... we can tell on this board too. :thumbsup:
It's real easy to tell. The tool steel washers are steel. They will have a shiny, metallic edge. Also... a magnet will be pulled on nice and tight. The ceramic washers will have a gray/green color to them, and have no real magnetic remanence.