Stephen M wrote:
snip
BTW, does anyone in their right mind try to lap tools on the side of a
wheel? I've never tried it but it seems to me it would have all the
effectiveness of flattening a table table top with a belt sander.

Effectiveness is not the problem--using the side of a wheel can be
effective--it's safety. Most wheels and grinders are not designed to
have sideways force applied, and that method can cause the wheel to
shatter. Wheels shattering at that speed demand very good protection
devices if you don't want to spend time in the hospital.

H