Regrind before AND after....

Tom Krein

Tom Krein

Joined
Feb 11, 2003
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Just finished up this Spyderco Endura in ZDP-189 for a customer and thought I would post before and after pics....

I ground it to .010" at the edge. The back 3/4" is slightly thicker after sharpening at .012". This should turn out to be a great little slicer!

Before I got started the grind did not even go half way up the blade and was VERY wedgie. Very thick at the edge!

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I now has a full flat grind. Very similar to the blade on the Calypso Jr.s' in profile!

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Let me know what you guys/gals think!

Tom
 

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Beautiful work again, Tom. Now that knife has a much more proper grind for the steel, and will cut WAY better than before. If and when I get a ZDP Endura I have your number and address, and I would want mine to get the same treatment. It is funny how almost every time I pull out a knife I think "I wish I had the money to send this one off to Tom Krein for a regrind". In the meanwhile I get to play around with the 5 high hollow grinds you did for me (and Cliff), and enjoying cutting bliss.

Mike
 
Normally I just focus on performance (and you have certainly improved that), but I have to say that I really like the esthetics of your full grind Endura. Spyderco should pick it up as a standard model.
 
Love it. I'm starting to think that my vG-10 waved endura4 requires this treatment; perhaps not quite so thin though.
 
0.010" - 0.012" isn't thin, Joe. It's Peter Griffin wearing Stewie's "Berry Cute" onesie. That sort of edge might cut with only mental effort, but a thinner edge is needed to cut things before you think of them. 0.004" - 0.005", though, now that's a spicy meatball!
 
Thom, a fine point. In fact, in thinking about it, I'm willing to put that knife aside for defensive use, so I don't need EDC robustness.
 
It's sickening that cutting twine requires a thicker edge than stopping an attacker. Unless, of course, the attacker is a demon-possessed ball of twine...
 
Wow, Tom, that is fantastic. I must say that is my favorite regrind, yet. I totally agree with Jeff: I very much like the looks of it aswell. But I also like the idea of having almost 4" of that slicing ability!
 
Tom,

I just got it today. I wasn't expecting it so soon. You did an oustanding job, and I am very pleased :)

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It effortlessy sliced potatoes and strawberries for dinner this evening :D

Thanks for the excellent work, and getting it back to me so quickly.

thombrogan said:
Very nice and the clip is placed correctly, too. :cool:
Click to expand...

:D

Tom Berry
 
How is a regrind done?

My guess is you use some sort of belted sander or something. Do you do it free hand or have something that holds it in place? I'd think you'd need to keep it wet or go real slow to keep it from getting hot.
 
Very nice. It really brings the aesthetic and functional aspects into another dimension, a completely different knife.

Very nice and the clip is placed correctly, too.
Click to expand...

Excuse my ignorance, but what exactly is the clip placed correctly for? It would not be my preference; I’m right handed and wear my knife on the inside of my front pocket.
 
I do regrind it on a belt sander.

Care must be taken to not get the blade too hot. I do this by holding blade by hand and dipping it in water often. My thumbs and fingers tell me when it is too hot to hold!

Tom
 
Another thought to add to this is that a lot of people said that extreme regrinds like Tom does couldn't be done due to ruining the heat treat, but he has convinced me (and I would imagine anyone else that ever got a regrind from him) that it is very possible to regrind a knife to proper proportions without ruining the blade. The only slight difference I might make to a ZDP Endura Regrind would be to have the top of the blade flattened out to make a slightly pointier tip (a la Military blade shape), like STR did for me on my R2, but that is a minor point (no pun intended). Either way, the knife looks great, and has to cut infinately better than before (all of the regrinds he did for me cut so much better it is hard to belive the difference). Another side benefit is Tom can put VERY sharp edges on your blade, easily tree topping arm hairs along with great slicing aggression.

Mike
 
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