Anything that can take metal off, but be careful not to destroy the temper of the tip, or else you'll lose the extreme tip capabilities. <img src="/ubbthreads/images/graemlins/laugh.gif" alt="" />
It's just and extremely small swedge.
M22 applied one on his MPLE.
Accidentally...shhhh... <img src="/ubbthreads/images/graemlins/wink.gif" alt="" />
Yeah, of course you can do it. I've never worked with a grinder before, but the hard part I imagine is getting both sides equals.
Here's one a lot of starters use. I haven't picked one up yet, but this summer after summer school, I'm going to clean my garage and make my own 3rd world grind shop. <img src="/ubbthreads/images/graemlins/grin.gif" alt="" />
http://www.harborfreight.com/cpi/ctaf/displayitem.taf?Itemnumber=2485