Report on Cermet II at Marvin Windows

-----Original Message-----

From: Nathan Hull [mailto:B_NATHANH@marvin.com]

Sent: Wednesday, May 16, 2007 1:16 PM

To: emilyerskine@carbideprocessors.com

Subject: Cermet II

Emily

Hi I’m Nathan Hull the grinderman at Marvin Wood Products. Chris Folkman handed this off to me to give you some info on the saw that we tried.

How many times we re sharpen a blade before we order new or have retipped we are not sure. Most blades get damaged by hitting something so we have the carbides retipped a lot.

How often do regular blades have to be resharpened? We normally have our carbide tipped blades sharpened every week.

The new Cement II blade normally last twice as long before it gets damaged.

The best so far is four weeks and one and a half million cuts before we changed it out which is four times longer.

Hope this helps and keep up the good work on those tips.

Nathan Hull

Grinderman

Marvin Wood Products