|
|
Posted by Glen of Idaho [72.173.32.39] on Friday, September 14, 2012 at 21:19:11 :
In Reply to: hardened steel posted by Jerry in Idaho [69.59.83.175] on Friday, September 14, 2012 at 13:58:09 :
If it is hardened. Or it may be AR abrasive resistant. I can drill spring steel with a regular bit. the trick is turn it very slow, keep the cutting fluid on it and don't stop until you go thru.
I would feel better knowing what I was working with first and start with the right stuff.