Anatomy of a Utility Knife

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Jul 27, 2003
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I needed to photograph this for a friend who was here at my shop to watch me build one of these, so I thought I might share it with you guys.
This is one of my "Field Grade" knives, but don't let the title fool you - it's built every bit as solid as any knife from Andersen Forge.
When this is done - tomorrow some time - I will do a final photo and a little history of the materials used.
The blade was forged from 1 " square 5160 made in 1984.
The Osage was stabilized and cut from logs I acquired that were harvested in the mid-60s. I've had them for 15-16 years.
Stainless guard. (The light is playing some weird voodoo on the geometry there? Either that or my editing)
I wanted to show the full through-tang, and the handle pinned to the guard for lateral strength, as well as creative freedom during the construction, and the threaded finial.
What some folks never get to see is that 5/16" collar that the finial goes through.
That is seated in the bottom of the stepped hole so that throughout the construction of the knife, the "ledge" of the finial never grinds on wood, but is always metal-to-metal when assembled.
I go through such grain refinement and spherodizing steps on my steel, that when I seat the finial - again and again - I seat it with vise grips nearly as tight as I can do it by hand.
When I have to do a little bend in the tang, I literally have to put on my welding gloves, lock the tang in the vise and grab the blade and leeeeeeeaaaaaaaan backwards to get it to bend.
That 5160 is flat friggin' bad ass tough when treated correctly.
When the assembly is done, you can drive over one of these knives with your truck.
Just thought you guys might enjoy another picture here on this Sunday afternoon!
fieldknifeA-1.jpg
 
Looks like an extreemly solid way to build a knife...and Osage
Orange makes a plenty tough handle....a good fit for your
5160...
 
Very interesting. I know I talked with you and saw you take-down a your knife at BLADE - but when just looking at the finished knife it's easy to forget all that goes into it, that's the goal I guess. :thumbup:

Can you descibe how the two pins are put in, taken out and where they reside exactly?

Thanks
Vince
 
No secret there, Vince.
Those are stainless dowel pins that are 5/8" long - .625".
I drill two holes - one on either side of the tang hole in the guard butt, centered on the ricasso.
.150" into the guard and .475" into the handle.
I leave them free floating.
Consider the lateral shear stress that would be required to compromise that handle assembly - even without sealant/epoxy involved!
 
Cool.. Lots of info in that picture. Thanks.!

Do you "step" the sides of the ricasso or is your slot cut exactly the width of the ricasso?
 
Cool.. Lots of info in that picture. Thanks.!

Do you "step" the sides of the ricasso or is your slot cut exactly the width of the ricasso?


No - I figure if you're gonna call yourself a "knife maker" you had better be able to make a guard fit.
My fixed assembly knives will get sealed with 'something' and may have a tiny, hair-line.

This is also a good opportunity to see why I call this a "Field Grade" knife as the guard is a machine finish.
Absolutely untouched in the creation process by anything other than my mill and belt grinder.
Of course, I did HOLD it with my hand, but spent no time shaping it or finishing it by hand.
ga-1.jpg
 
Nice job Karl! I think i just fell for a redhead! :D. My favorite of your knives so far. :thumbup:
David

"Simplicity is the highest acheivement of art". Benjamin Latrobe, architect
 
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No - I figure if you're gonna call yourself a "knife maker" you had better be able to make a guard fit.
My fixed assembly knives will get sealed with 'something' and may have a tiny, hair-line.

Great photo and nice fit.
Well it certainly is a stronger tang than a stepped one. I just assumed that most were stepped. Learn something new every day. :)
I wonder if I can do that with hand files instead of a mill. :eek::eek:
 
I have one of Karl's take down knives and it is sturdy and solid for sure a quality knife and great performer!

Steve
---------
Potomac Forge
 
They drill square holes in Germany, I thought maybe you figured something out.

That statement is in reference to the "machine finish" of the guard.
I did nothing by hand to profile or finish the guard for appearance reasons in an effort to save time and expense.
I did radius the guard slot with a small file to fit the shoulder radius.
That was for fit - not finish.
Sorry if there was any confusion.
 
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