random questions from a first-timer

[talkingcabbage]

I've been reading quite a lot on here lately, about knife/sheath making, and I've got a few questions...
I work at a granite countertop shop, and we have these 18" diamond silent-core blades for our bridge saw.  I'm not sure what kind of metal is in them, or what makes them silent-core, but does anyone have experience with these in knife-making?  Will they work?

About sheaths -- I can't really afford the fancy embossing tools for leather right now, so I was gonna make some.  How do they work?  Do they just stamp the leather, or do they cut into it?  What kind of things could I make some embossing tools out of?  I have access to some scrap metal and such, but I need a starting point.  My leather working is elementary at this point, and I'd like to at least graduate junior high.  

Thanks in advance to all.

Joe

[sixshooter4]

the ones I have use heat and presure ..... You can get a great starter kit at michaels arts and crafts for $ 29 and then gil out new staps from copper

[skullworks]

I use a basic stamp set from Tandy and make my deer and turkey prints out of a piece of round aluminum. I my stamps work by hitting them with a rubber or leather mallet on wet leather. Do a search on leather working. there was a couple of threads about basic leather tools.

[talkingcabbage]

what about those blades?  anyone have any thoughts on those?  They could make some big knives (or a lot of little ones)