They might be MoMetal moly steel or cobalt steel - M42 or such.

Those were popular 50 years ago in cutting hard or strong stuff.

I'd try out the old blades and see what they can do.

Might be good secondary or primary blades.

Martin

Martin H. Eastburn
@ home at Lions' Lair with our computer lionslair at consolidated dot net
"Our Republic and the Press will Rise or Fall Together": Joseph Pulitzer
TSRA: Endowed; NRA LOH & Patron Member, Golden Eagle, Patriot's Medal.
NRA Second Amendment Task Force Originator & Charter Founder
IHMSA and NRA Metallic Silhouette maker & member. http://lufkinced.com/

On 10/14/2010 3:18 PM, Woody wrote:
On 10/14/2010 3:47 PM, Thos wrote:
Part of the things I got after the death of my Dad a few years ago was a
cabinet with several (20-30) blades for a the old Delta TS he had. I don't
believe any of them are "name brand" blades. There are a variety of rip and
crosscut blades, some in decent shape and sharp, and some are dull, and
slightly rusty. If I had to guess, most of the blades are at least 50 years
old. Is there any use for these other than selling for scrap metal prices
which seem to be up these days? I have his saw, a mid '50s Unisaw and I
have a few good modern blades for it. These old blades haven't seen the
light of day in many years and are just taking up space. Opinions?
Thanks in advance


I don't know if they had carbide-tipped blades 50 years ago. If they did, send
them to Forrest for sharpening. They'll repair any damaged teeth and they'll cut
like new.