Mike from National Carbide & Tool stopped by the shop today with two pair of
radial arm saw blades. I had mentioned to him that I wasn't satisfied with
the blades I've used - eveything I tried either was too aggresive, or didn't
cut pretty, or wore too fast. My saw is an old 9" DeWalt, so Mike made up
two each 20 tooth 2 degree negative rake and 40 tooth negative rake CobraCut
blades for the saw. He went on about the advantages of the 2 degree
negative rake over 5 degree negative rake, the radial angle, the extra bevel
on the tips, why the big name blades are no good, etc., but mostly that went
over my head. I will say the 20 tooth was able to saw 8/4 oak effortlessly
and with a super clean polished cut with no tear out on the edge. Next we
put in one of the 40 tooth blades and I was able to get a super clean cut
with no tear-out on walnut veneer. Later I was cutting some 1/2" thick
basswood and just zipping through it fast as can be. Of course, basswood is
super light, but still the blades didn't want to self feed no matter how
fast I went.

Sweet blades. Just thought I'd give Mike a plug; I've got quite a few of
his blades now, and I'm real happy with the performance of all of them.



--
Timothy Juvenal
www.rude-tone.com/work.htm