Better than a bench grinder for making blades is a belt sander. Even a portable model clamped in a vise will work

I think my question has been forgotten or maybe not noticed




Looks like a saw but , well, is just too thick for a saw. Is there any other uses for a saw-like spine ?

Drop the saw spine. Most likely, the saw will be a very poor saw - and it will interfere with what else you actually use the knife for.


Saw spines are just for looking cool, IMO. And it interferes with other functionality of the knife (or knife-looking tool). Such as batoning. A saw will be a pain in the neck if you want to hold or support the knife partially on the spine, such as when scraping or doing some delicate tasks.


The original rambo knife claimed the saw also was wire breakers (insert the wire into the notch, bend it back and forth as fast and hard as you can, and you can snap the wire at the bend). Don't know if it works. If you really think this is important ONE notch should do the trick...


What you could add to the spine is a "belt cutter" or a "gut opener" hook. Take a look at the cop tool for inspiration. That's really handy for cutting strings, box wrappings, ropes and basically all things that can snag on a "gut hook". And because the edge is protected inside the loop you can abuse the knife/tool as much as you like (prying, whatever) without damaging that edge.

Aside from a sawback being useless for most purposes you have to keep in mind that any deep, sharp serrations or sawteeth create weak points where the blade is liable to snap when stressed heavily.

Agreed

Another reason i have to stay away from the Razel and focus on making one myself using the model of hack knife and EOD tool.

DIYing it is the way to go
Lets hope I don't lose a finger or something LOL

Of course, you COULD go with any of the original custom Razel knives, and get what you want...

(at a slightly higher price)