First knife project, a few questions and pics

Joined
Nov 16, 2009
Messages
6
Hello,
First off, my name is Brian and I live in Western Colorado. I decided to start building a knife or two because I am yet to find to perfect one, and tired of carrying 6 lower quality knives in the field while hunting for myself or guiding others.

I have a few questions, but first here are a few pictures of what I have done so far on my first knife...

Here it is after the majority of the Hacksaw cuts
knife-cutout.jpg


After my hand filed shaping
knife-shaped.jpg


A little embellishment, and traction for my fingers
ropefilework.jpg


And finally the overall, I still need to go back and resand out a few scratches.
knife-1.jpg


This knife is basically a blend of my three favorite skinning knives, and is my own design. The steel is 1/8" CPM154, and the handle will be Olive Burl held on by 2 brass corby rivets. Everything has been done by hand filing, sawing, and sanding except for the drill press and a dremel with sanding drum to clean burs of the drilled holes. I have filed the blade down to 0.025" and will take it to 400 grit finish prior to heat treating. The knife is 7" overall with a 2 3/4" cutting edge.

The only thing I am not pleased with so far is my transition radius from blade bevel to the ricasso. Purely my fault for not grinding a perfectly flat sided safe round file, and using a full round to finish it. I therefore have a nice round groove on each side of the blade that will likely stay as a reminder for future knives.

When you grind a flat safe side on your round files, what machine do you have best results with? I have a bench grinder, and my boss has a small handheld 1"belt sander.

Who do you guys use for heat treating services? I was thinking Texas Knifemaker's Supply. I will have three blades, two skinners and 1 small caper.

Is there anything I should specify with the heat treating company, or is it generally a pretty standard process based on type of steel?

I am also thinking of having them cryo treated. Any major arguements for or against having this done on this knife?


Thanks,

Brian
 
I use a belt grinder to grind safe sides to my files.

As for heat treating, Texas Knife Supply does a good job from what I hear. There are other's out there like Paul Bos who come very highly recommended as well. Usually, you can specify the desired final Rockwell hardness and they can get in the ballpark for you; and yes, there is a typical specific heat treating process for any given steel. CPM154 is an excellent steel, and I'd recommend definitely getting the cryo treatment. A LN cryo takes the blade to -320F or so and holds it there for a specified period of time to convert retained austenite into martensite. In high alloys like CPM154, making this effort can improve the performance of the steel.

Welcome to BF, by the way!

--nathan
 
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