metalmagpie
Titanium
- Joined
- May 22, 2006
- Location
- Seattle
I'm using a Biax 25/150/90 blade. I use that one a lot because it's flexible and fairly easy to control. I've been scraping a part and I am noticing that after awhile the blade isn't cutting quite the same way. I look at the underside of the blade at the tip and there's a little film of black stringy stuff. I remove it with my thumbnail and it again cuts normally. What is this stuff I'm scraping off?
metalmagpie
metalmagpie
