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Re: CPM M4 in use reports [Re: michiganroadkill] #13941666 07/01/19
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michiganroadkill Online Content OP
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Another report of M4 performance
"Tim,
Skinned a couple more yearling cattle yesterday and the knife is still shaving sharp. Thanks again
zach"


"The significant problems we face cannot be solved at the same level of thinking we were at when we created them."
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At Khe Sanh a sign read "For those who fight for it, life has a flavor the protected never knew".
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Re: CPM M4 in use reports [Re: michiganroadkill] #13966384 07/11/19
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So being of sound mind I been finishing some of the CPM M4 in knives for myself. I already have more "personal" knives
than I can use, but I am sooooo good to myself.

It seems that 21 degrees gives a very nice edge for all shapes and blade thickness. I go to 600 grit and then leather strop.
I need to do some more extensive cutting and whittling to see how the edge retention is, but seems really good at this point.

Anyone who got one of this batch that would like a resharpen by me, it will only cost you the shipping to get it to me.

Have any of you done a resharpen on one of these blades yet?????? If so????????

Thanks
Tim
PS: IFFF I could post pics here I would show my personal knives here.
I can send a pic by smart ass phone if someone wants to post it here.

Last edited by michiganroadkill; 07/11/19.

"The significant problems we face cannot be solved at the same level of thinking we were at when we created them."
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At Khe Sanh a sign read "For those who fight for it, life has a flavor the protected never knew".
Re: CPM M4 in use reports [Re: michiganroadkill] #13966647 07/11/19
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I am still using mine at the steeper angle (more like 15 degrees) and it does not seem to be too much. The edge does not roll and the thing stays shaving sharp. I will start killing deer in two months now so pretty soon I will run the blade over the diamond stone again and then polish on a water stone and after that I will just use it on deer gutting, shinning, breaking down into quarters boning out the carcass (Ribs and neck) and then it will be used for boning out the quarters. Once that begins I do not expect to have much to report until it gets dull enough to need to see the diamond stone again. That looks to me like it will take several years at least from the use I have put it through over the summer so far. Nothing seems to bother it. My favorite VG-10 knife with nearly the same geometry took just over two years (nine deer). I intend to compare apples to apples so I will only use it on deer once I start the test. If you want a interim report before I come back at the "end" just email me.

Re: CPM M4 in use reports [Re: michiganroadkill] #14260866 11/06/19
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Tim,

You made me the little 3.25" caper with thin green micarta handles and red liners in your second M4 run. It's pictured in the "What blade makers interest you most?" thread. I hadn't gotten the opportunity to use it until this evening. I skinned out a respectable whitetail buck (10 points and 165-170 pounds) with it down to the ears. Popped both front legs at the joint with it and down cut to the radial joint in the neck to get the head. I didn't sharpen it beyond what it was in the sheath before I started and when I was done it would still literally shave hair off my arm. Pulled a bit though. The blade is perfect for what I had it built for and I sincerely could not be happier with its performance.

It's an exceptional knife, and the second of your M4 knives I've had. Both out performed my expectations.

Thank you for making it for me.

Frank

Last edited by fshaw; 11/06/19.
Re: CPM M4 in use reports [Re: michiganroadkill] #14261370 11/07/19
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michiganroadkill Online Content OP
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Frank

Thanks for that report.

Seems to be a pretty good steel so far.

Thanks
Tim


"The significant problems we face cannot be solved at the same level of thinking we were at when we created them."
Albert Einstein

At Khe Sanh a sign read "For those who fight for it, life has a flavor the protected never knew".
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Re: CPM M4 in use reports [Re: michiganroadkill] #14278112 11/13/19
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Loaned the caper to a good friend that skinned out a mostly frozen 12 pointer with it over the weekend. Would also shave hair at the end of that along all points on the blade including the belly that does most of the cutting while skinning. Can't really ask for much more than that. Truly a great little knife.

Last edited by fshaw; 11/13/19.
Re: CPM M4 in use reports [Re: michiganroadkill] #14279472 11/14/19
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michiganroadkill Online Content OP
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And I think that one was at 24 degrees, but may have been 21.
Nice report.
Thanks
Tim


"The significant problems we face cannot be solved at the same level of thinking we were at when we created them."
Albert Einstein

At Khe Sanh a sign read "For those who fight for it, life has a flavor the protected never knew".
Re: CPM M4 in use reports [Re: michiganroadkill] #14562358 02/11/20
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I have sent a couple dozen knives to 24 members in the last couple months after I switched to an
18 degree setting on my Edge Pro for final sharpening bevel.
I was doing mostly 21 degrees before.
Most were M4 and a couple other steels.

What is the report on the 18 degree edge??????
Works for you? Would be better if......... Or ?.......

I have not used that angle in field yet, but it sure cuts me easily.
Seems to do good on the whittling of beech and edge holding I have done.
I do not see a reason to use a more narrow angle, but a steeper angle seems better on some blades.

???????
Tim


"The significant problems we face cannot be solved at the same level of thinking we were at when we created them."
Albert Einstein

At Khe Sanh a sign read "For those who fight for it, life has a flavor the protected never knew".
Re: CPM M4 in use reports [Re: michiganroadkill] #14562363 02/11/20
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Tim, I have two of your skinners in M4. How about I send one back to you and have the angle changed? I will foot the cost of course. That would give a good comparison


Sam......

Re: CPM M4 in use reports [Re: michiganroadkill] #14562501 02/11/20
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Sam
Sure. No cost other than your shipping.
Tim


"The significant problems we face cannot be solved at the same level of thinking we were at when we created them."
Albert Einstein

At Khe Sanh a sign read "For those who fight for it, life has a flavor the protected never knew".
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Re: CPM M4 in use reports [Re: michiganroadkill] #14562596 02/11/20
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FWIW I got a little paring / B&T from Tim in CPM M4 and thought it about perfect for deer too. It went through 4 this year and is still sharp enough to peel grapes.


Re: CPM M4 in use reports [Re: michiganroadkill] #14562699 02/11/20
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Note: I just started putting the angle sharpened at on the back of the 3x5
card when I started doing 18 degrees.
Before that probably 21 degrees.


"The significant problems we face cannot be solved at the same level of thinking we were at when we created them."
Albert Einstein

At Khe Sanh a sign read "For those who fight for it, life has a flavor the protected never knew".
Re: CPM M4 in use reports [Re: michiganroadkill] #14562971 02/11/20
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I have sharpened mine to 15 degrees and it has done two deer, gut, skin, disassemble and some of the boning out. The nose is actually a little steeper, probably 10 degrees. It remains shaving sharp and likely will not be used until next year.

I have very often sharpened knives of decent steel like this, and the only ones that I will not do this steep are the carbon steel blades that are much more prone to corrosion. Those knives, like the old Sabatier carbon blades will go dull just from cutting meat and washing them. I strongly suspect that it i because the very, very fine edge has a tendency to corrode rather than wear. IMO it would be a complete waste of time to put them on a water stone and polish the edge at 5-8 thousand grit. M4 it seems to me is well more than corrosion resistant enough to warrant it though. The patina on the blade has not changed since last fall.

Re: CPM M4 in use reports [Re: michiganroadkill] #14578356 02/16/20
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Finally got to use the new skinner that Tim sent. Processed nearly an entire adult beef cow (skin, gut, quarter, trim) today. Washed the knife when I got home and it easily shaved hair. Couple passes on the strop and it was popping hair. Great knife and great design.

Re: CPM M4 in use reports [Re: michiganroadkill] #14581781 02/17/20
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Good to hear. Thanks for the report.


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