Originally Posted by
Slartibartfast
What exactly is "regrinding"? What is the goal and what tools are used(belt sander, bench grinder?)
In the knife world a regrind rarely includes anything more than using an abrasive belt on a machine to give a worn knife a new hollow grind or flat grind. The term (IMO) should have nothing to do with decorating a knife/razor or using sub-par tools like a dremel to acheive the end result. The best results are had by using 2"x72" belts on a high-quality machine. You can use smaller belts or lower quality machines, but the results are usually less than good (IMO).
Is this done when a blade is unfinished or has too much pitting to simply sand/use compounds?
I most often do it when there is lots of pitting, a huge bevel, tons of honewear, or just to make the razor/knife look like new. It can be done for whatever reasons you want really.