Heavy duty 3V chopper prototype

Nathan the Machinist

KnifeMaker / Machinist / Evil Genius
Moderator
Knifemaker / Craftsman / Service Provider
Feedback: +140 / =0 / -0
Joined
Feb 13, 2007
Messages
17,943
Please understand what this is before buying it. This is an expensive non-production heavy chopper prototype.

We have no plans to make this a standard pattern, so if you're looking for a very heavy duty 3V chopper, we're only making a few of these.

If you're looking for the Light Chopper I will be posting one of those in this forum in just a few minutes :thumbup:

Because the heavy chopper will not be a standard pattern there is no fixturing, so these were done the hard way, milled with a fine step over then partially hand ground. They're heat treated one-at-a-time, not in a batch. This is "field grade" with tool marks, hardness test dimples and heat treat scale, but I've tried to keep them pretty. I wailed on the test knives before it, but this knife is new and has not been beat on.


The knife in the picture is the knife you will receive.

It's made of CPM 3V at HRC 60.5 with a preliminary version of the newest heat treat that I believe is the finest heat treat for this material available anywhere. This is an exceptional knife with a combination of toughness and edge retention that will blow your mind.

The hand grip works as a heavy camp knife when held towards the front with good balance and dexterity. When held towards the back it fully fills the hand and offers control and reduced hand fatigue for extended hard chopping.

It has a forward lanyard hole (as used in competition cuts) and a hidden rear lanyard hole.

This is a refined prototype without sheath. $500.

I guarantee you will love this knife and if after receiving it you don't go into a hand flapping frenzy of joy you can return it for a full refund. This is a rough use knife and comes with my rough use warranty like on the Shivs, if it ever fails for any reason short of intentionally breaking it I will replace, repair or refund. You can't break this knife without a big cheater bar. If you want to cut big nails or baton through cinder block, it will do it, whatever floats your boat. See video. Send it back and I'll re-sharpen it for you. :thumbup:


There is one knife available in this sale. There will be a few more down the road, but there is only one ready at this time.


1.jpg~original


2.jpg~original


3.jpg~original


4.jpg~original


5.jpg~original


6.jpg~original


7.jpg~original


8.jpg~original


9.jpg~original


10.jpg~original



Video:

[video=youtube;Fl8Zdc-lfUM]https://www.youtube.com/watch?v=Fl8Zdc-lfUM[/video]


~16 total length, ~10" blade, .260" thick, 22.9 oz, balances about 1 1/2" into the blade. Edge is sharpened 20 DPS, ~.035" (<1 MM) directly behind the edge.

There are a total of 8 numbered knives in process, some of which will be available. The one in this sale is serial #4.

This is the last of these for a while. The rest are going to into HT trial at Peters.


Thanks for looking.
 
nice! has anyone been able to heat treat or make a 3V chopper that can chop concrete and nails without chipping/rolling? I mean with an optimal heat treat and edge retention....
 
Nathan are you saying that Peters is able to replicate your HT on a large scale? If so this is the most exciting developement in the blade world since INFI.

That's the plan. Survive Knives provided piles of 3V test blades in different shapes and sizes for the development work on this protocol and has a stake in it as well as Dan Keffeler.

I have a pretty legit small heat treat setup here at my shop, but I'm very limited in output. The only way this was ever going to scale up was putting it in a big HT shop.

Peter's has tools I could only dream of, so it has merely been a matter of getting the processes worked out at their facility. Most of it was compatible with their existing processes but there was one sticking point and that has been resolved. It has taken a couple months but I think we're ready. :thumbup:
 
That's the plan. Survive Knives provided piles of 3V test blades in different shapes and sizes for the development work on this protocol and has a stake in it as well as Dan Keffeler.

I have a pretty legit small heat treat setup here at my shop, but I'm very limited in output. The only way this was ever going to scale up was putting it in a big HT shop.

Peter's has tools I could only dream of, so it has merely been a matter of getting the processes worked out at their facility. Most of it was compatible with their existing processes but there was one sticking point and that has been resolved. It has taken a couple months but I think we're ready. :thumbup:

I think I'm speaking for all of us on the Survive! forum when I say that this is fantastic news! Thank you for your continued collaboration with Guy and Dan! You guys have given us all a great deal to look forward to and we all appreciate the hard work and effort very much.
 
Back
Top