"StanKap" wrote in
:

The problem is hardening of the hole edge due to the heat of the laser
or plasmas cutting torch. The material you are reaming is slightly
hardened.


Yeah, I kind of figured that that might be a problem, though it was easy
enough to clean up the edges with a flapper wheel. Also I think the laser
might have been a little conservative cutting the holes 1/64 under making
it slightly hard work for the reamer. Towards the end, before it died, I
was gently knocking the edge off the burnt bit with a rat tail file. I
suspect the reamer might nt have been the best quality either.



Bertie