Critique My First Knife

Joined
Oct 25, 2012
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2
I just recently built my first knife, before finding this great site. I would appreciate any critiques and advise you could pass along.

I wanted to make this a budget build and also use as many hand tools as possible. It took me over a month to finish as I had to do it when we were slow at work. I am a commission mechanic but I like to keep busy even if there no cars to fix.

I used the cheapskate method found here as a guide.
http://www.knife-making-supplies.net/cheap-knife-tutorial.html


I started with a pry bar that I purchased from Harbor Freight and rough cut it using an angle grinder.

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I shaped the profile with the angle grinder as well. I started the plunge cuts with the angle grinder but quickly found that it was too hard to control the flatness of my grind so I switched to a file. That took the most time.

This was after I sanded the blade.

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Next I heat treated the blade. I used an oxy/acetylene torch with a rose bud tip. Heated the blade to a non-magnetic state then quenched in clean 0W20 motor oil. It was handy. I next heated the spine to a dull red with the torch and let it air cool overnight.

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I then set to work on finding some cheap handle scales. Just so happens I had a big mesquite tree blow down at my house and the wood has been "Aging" in my back yard for over a year. Cut up a nice branch and found some suitable slices.

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I gave it an edge before fitting the handle because I had no idea if it would take an edge. I did so I moved on.

I found some brazing rod under my toolbox and I blew the dust off and used it for my pins. Mixed up some 5 min epoxy and clamped my scales on overnight.

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Did my shaping and moved from corse to fine paper.

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I then needed some kind of finish and found an old bottle of R12 refrigerant oil that we can't use any more for cars as it has been left open for too long. It's mineral oil so should be better than nothing.

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Here it is after two coats.

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End of the day glam shot but it still needs more work.

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Took it home with me that night and made a quick sheath from PVC pipe. After shaping I gave it a quick coat of Krylon Camo green.

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It has excellent retention.

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After some more polishing with Flitz metal polish and a t-shirt backed up with a paint stir stick.

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Then, as so often is the case with me, I decided to take things one step too far. I layered on cold blue on the blade. I had done this to one of my cheap hatchets in the past after it rusted really bad and since it looked good on that, I figured it would look good on the knife.

I regret it a little. I think it looked better polished in the white.

Any way here she is.

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Feel free to do critique this as I want to learn to make the next one better.

Looking to get a belt sander next. Leaning towards a Craftsman 2x42.
 
That re-defines "sharpened pry bar". For what you had to work with and your methods/techniques...oh hell...regardless of how you got it there...I think that's a fine specimen. I love the mesquite look. I agree with your assesment on the cold bluing...I would have left it "in the white" ...that polish job was amazing.
 
I for one think it's great. I put off getting into this hobby for over ten years because the first book I read on the subject was Bob Lovelaces book as well as watching his video. Both were great resources, but it left me thinking I had to have the most expensive machines and tools to even think about making a knife of any decent quality. I love to see people making knives out of what's on hand. They may not be the best knives out there, but sometimes people just want to make a knife right away with what they have on hand.

That Mesquite is the bomb! It's one of my favorite woods to use and that piece you have there sure has some character!

Now the $64,000 question. Does it hold an edge?

By the way, the Craftsman 2x42 will work for you knife making hobby. Just remember that it's not ideal and that's it's FAST! That means you can ruin a potential knife very fast! But for the money, they're hard to beat. You may want to make a few mods to it, check out the $500 Knife Shop on YouTube.
 
Welcome to Shop Talk.

That is a great job, especially when one considers the methods and materials.
If you want it bright again, just polish with Flitz. The blue color is only a surface patina.

You will be glad you found Bladeforums when you start on the next knife. The sticky "How to Instructions for Making a Knife" are right up your alley.
Also, get a bar of 1084 from Aldo - http://newjerseysteelbaron.com/
That Chinese pry-bar is anyones guess, but likely only 40-50 points of carbon.
Also, the HT you did may have been ruined when you softened the tang after the blade. You normally do it the other way around.
 
Very nice job, especially considering you did it before you found this forum. It shows all the signs of a first knife, but does a very good job on them. Eagerly looking forward to your next knife. I'm in the same boat as you, I also make them at work when it is slow. It's something great to do to keep you busy.
 
Also, the HT you did may have been ruined when you softened the tang after the blade. You normally do it the other way around.

I wasn't sure about my tempering step.

I heated this section of the blade to a dull red.

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I was hopping that it would act as a differential temper, leaving the edge harder and the spine tougher.

Things I plan do do different next time.

1. Primary edge will go higher on the blade, thereby thinning it more.

2. Drill lightening holes in handle. It feels unbalanced.

3. Work out more bugs with my heat treat.
 
nice handles! luck you had a mesquite tree felled near by! the only indigenous tree that's in any decent number where I live is poplar and pine. some of the least attractive wood you can find :/
 
Yeah, I wish he had found this forum first,too.

The hardness is completely destroyed if you heated the blade to dull red like described and then let it slow cool overnight. That is what you do to anneal ( soften) a blade for filing and sanding before HT.

The process given in the file knife sticky would be appropriate for your knife, but that is water under the bridge now.
Basically:
Anneal the blank by heating to full red and letting air cool, then heat to dull red and let slow cool. ( not the best way, but it will soften the blade blank)
When the blade is ready for HT (and all holes have been drilled), heat the blade to non-magnetic and then a little hotter. If possible, hold at this heat for a minute or so. Quench in 120F canola oil ( motor oil isn't all that good an idea).
Temper in the kitchen oven at 400F for two hours and take out. Rinse with running water to cool off. Put back for a second two hour temper.
Blade should be around the right hardness and temper. No guarantees, but the best shot at a fair to good edge.
 
That is too cool, I have the first one I made and I really messed up, I used home depot steel, I still look at it and play with it and I am really proud. Keep this baby and use what you have learned to go on.
 
Great work! You are an inspiration to people like me who dream of one day being able to do something similar!
 
Great knife!!! Everything that I want to try! You made me one step closer to trying to make one for myself!
 
Wow, that looks really dressed up, man. It's just classy lookin, very impressed with the stained wood and kydex sheath!
 
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