De-Waving a ZT0620 (Done) PIC HEAVY

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Feb 27, 2008
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Hi Everyone,

So, I did it... and, I am really happy with the outcome. I am sure that not everyone will like what I have done, but that is okay it is my knife :D (Sorry CM). I took a bunch of pics along the way, hopefully they can help someone out in the future. I know before I de-waved my ZT620 I looked for around online for threads of other people that had done the same and found nothing.

Step 1:
Tape off the edge, remove the thumb disc, and mark out where I want the final cut.
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Step 2:
Remove the blade. I put Teflon plumbers tape on the bolt so that my socket wouldn't mar the black finish.
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Step 3:
I took some silicone tubing I had and sliced it down the center, then slid it up the spice of the blade and taped in in place. I did this so that if I slipped with a tool there was more than just some tape between my blade and a big scratch.
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Step 4:
Thoroughly tape up everywhere I don't want to scratch. I also taped a piece of 3mm acrylic in place to act as a guide for the side of the cutting disc, and to prevent accidentally cutting too far back.
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Step 5:
Cut... with lots of lube going about 1.5mm at a time allowing the blade to completely cool so as not to affect the heat treatment of the steel.
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Step 6:
Shape the newly cut surface to where I ultimately want it. To do this I used an Atoma 140 grit diamond stone, and the diamond file on my Leatherman. During this step I slid a piece of old bike inner tube up the taped up blade and then taped it in place, I did this to further protect the spine of the blade I wasn't working on from any inadvertent tool marks.
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Step 7:
Unwrap the blade and check where I was at with my shaping. I did this many times throughout the process, but I would rather be out a bit of time and some electrical tape than remove more metal than I indented.
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Step 8:
Once I had removed all the metal I wanted to, I set about matching the finish. I did this with Dremel abrasive wheels of varying grits (pictured below).
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Step 9:
Clean and reassemble my knife.
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Overall I am happy with the outcome. I tried to capture the finish about, but didn't do a great job... in person, the cut surface looks nearly identical to the rest of the spine. Sorry for the lengthy post, but I am always interested in more info than less. I hope that this can help some people in the future.

Thanks!



Original post below:

I recently bought a ZT0620CF and I find myself really disliking the Wave feature. I like everything else about the knife and am thinking that I might remove the Wave. Now, if I had a complete shop I would know exactly how to do this, but I don't. What I do have is: a Milwaukee rotary tool, with a pretty comprehensive bit assortment, an Atoma 140 grit diamond stone, and some small diamond files.

Here is what I was thinking I would do:
1. Remove the blade
2. Remove the thumb disk
3. Tape up everywhere I do not want to cut or file
4. Clamp the blade to the edge of my workbench
5. Cut off the Wave about 2mm from where I ultimately want the final surface (I would use a cutting wheel and plenty of lube)
6. Take the cut surface to where I want it with the Atoma stone
7. Draw file the surface with the diamond files to its final shape
8. Take a wire wheel to the surface to attempt to mimic the 'stonewashed' look

Now, how does all of that sound? I have never worked on hardened steel before, are my about plans a pipe dream? Any suggestions? Think I shouldn't do it? And better yet, have any of you successfully removed a Wave before?

Thanks in advance for any help you can offer.
 
Last edited:
Should work fine. You won't be damaging the heat treat of the edge so have at it. I would try to get closer to where you want to be than 2mm though. That's a lot of steel to grind off with a stone.

Make sure you mock it up a couple different ways to see how it will look. Use a sharpie and black out what you want to remove and take some pics on a black background.
 
Looks better for sure. I actually like the way that hump looks. Nice and aggressive.
Enjoy!
 
Awesome Job!

What "lube" did you use while cutting to keep the blade cool and protect the heat treat?
 
Sorry, I kind of forgot about this thread. I used Fluid Film, it is not a machining lube but it has a great viscosity and worked really well for such a small cut.
 
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