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Mar 25th, 2012
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Cold Steel SRK Carbon V - Edge retention help needed #7140121
04/13/18 04:37 PM
04/13/18 04:37 PM
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deewayne2003 Offline OP
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I went moose hunting last October and took my Cold Steel SRK(carbon V(5) blade) as my work horse knife, this is the first time I have really used this knife since getting it brand new years ago and I love the knife and it started out strong, cutting through thick moose hide and hair, but when it got dull I was having hell getting the edge back.

For this hunt I took the SRK, a cold steel master hunter and a cold steel large fillet knife; for sharpening I brought a 12" diamond oval stick and it worked flawlessly on both of my other knives but the SRK would not take back its factory edge.

Question being is that the SRK seems to have VERY steep edge geometry and I was wondering if you guys think its simply an issue of having a good knife sharpening professional take it and grind it down to a finer edge?......

Re: Cold Steel SRK Carbon V - Edge retention help needed [Re: deewayne2003] #7140859
04/14/18 01:57 PM
04/14/18 01:57 PM
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Burleson, Tex and Possum Kingd...
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bjankowski Online content
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Burleson, Tex and Possum Kingd...
It's all about edge geometry one reason I've never liked scandi or chisel grinds especially for skinning. I make skinners hollow ground and slicers flat ground. Scani or chisel grinds best function is wood carving.

As far as grinding in down to a finer edge, would depend on how good the temper is. I can take an edge as thin as a razor blade but it needs to be tempered correctly. Just depend on the tempering process and material, it could give you a brittle edge. I test all my knives by chopping antler before attaching the handle, I've had very thin edges that stood up with no problem, only because I've refined my quenching and tempered process.

I learned that in the early days of my knife making; I chopped through the pelvic bone of a buck and discovered edge damage. Ever since that day each knife is made with making sure none of my customers ever experience that with one of my knives.


www.jankcustomknives.com
God is good always; always, God is good!

"If thou wilst a keen edge win
forge it thick and grind it thin"

Re: Cold Steel SRK Carbon V - Edge retention help needed [Re: deewayne2003] #7141471
04/15/18 02:51 PM
04/15/18 02:51 PM
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Era, Texas
Bush Monkey Knives Offline
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The final working bevel on any knife with both primary and secondary bevels is 20+ degrees/side or 40+ degrees inclusive and that is a very steep angle compared to a single bevel to zero which is typically 12 degrees/side or 24 degrees inclusive. Compared to working bevel geometry, the type of steel is relatively unimportant.

You can make bevel geometry complicated but it's really very simple. The angle of the working bevel translates directly into performance when all other variables are equal. Now, go take a look at the high/obtuse working bevel angle of every knife you have or can purchase.

Last edited by Bush Monkey Knives; 04/15/18 02:56 PM.
Re: Cold Steel SRK Carbon V - Edge retention help needed [Re: Bush Monkey Knives] #7142426
04/16/18 07:21 PM
04/16/18 07:21 PM
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deewayne2003 Offline OP
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Originally Posted By: Bush Monkey Knives
The final working bevel on any knife with both primary and secondary bevels is 20+ degrees/side or 40+ degrees inclusive and that is a very steep angle compared to a single bevel to zero which is typically 12 degrees/side or 24 degrees inclusive. Compared to working bevel geometry, the type of steel is relatively unimportant.

You can make bevel geometry complicated but it's really very simple. The angle of the working bevel translates directly into performance when all other variables are equal. Now, go take a look at the high/obtuse working bevel angle of every knife you have or can purchase.



Care to translate that into English?

Re: Cold Steel SRK Carbon V - Edge retention help needed [Re: deewayne2003] #7143289
04/17/18 06:00 PM
04/17/18 06:00 PM
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If all other variables are equal:

1. A low angle final bevel will perform better than a high angle final bevel.

2. Most knives have a high angle final bevel of 40+ degrees.

3. Some knives have a final working bevel of 24 degrees or less.

In other words, acute final bevel angles perform better than obtuse final bevel angles. Most people donít know this because all they have ever used are knives which have very steep final bevel angles.

Last edited by Bush Monkey Knives; 04/17/18 06:00 PM.
Re: Cold Steel SRK Carbon V - Edge retention help needed [Re: deewayne2003] #7144230
04/18/18 03:07 PM
04/18/18 03:07 PM
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deewayne2003 Offline OP
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Thanks Bush Monkey...... And what angle would you suggest for a 6" blade with a primary purpose of skinning & gutting large mammals like moose and elk?

Re: Cold Steel SRK Carbon V - Edge retention help needed [Re: deewayne2003] #7144299
04/18/18 04:06 PM
04/18/18 04:06 PM
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Era, Texas
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Several Alaskan guides and professional game processors have reported that final bevels in the 24-30 degree range perform better than higher angle bevels.

Which makes sense. Have you ever tried using a wedge of 40+ degrees compared to a wedge that is 25 degrees?

24 degree Saber Bevel vs Flat Ground with a steep 40+ degree final bevel. All flat and hollow ground knives have steep final bevels and comprise more than 90% of all knives out there. If you study the diagram, the answer to the question: "Which cuts better?" is pretty intuitive.



Last edited by Bush Monkey Knives; 04/18/18 04:18 PM.
Re: Cold Steel SRK Carbon V - Edge retention help needed [Re: deewayne2003] #7160547
05/04/18 10:45 PM
05/04/18 10:45 PM
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Bullfrog Offline
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^^^^good stuff^^^^

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