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by Chumango
Wed Jan 22, 2020 4:10 pm
Forum: Spyderco General Discussion
Topic: Paramilitary 2 - CTS-204p Question
Replies: 15
Views: 862

Re: Paramilitary 2 - CTS-204p Question

The pictures are out of focus, so a real opinion is not possible, but it looks like a grind line.
by Chumango
Sat Jan 18, 2020 3:49 pm
Forum: Spyderco General Discussion
Topic: CPM SPY27 steel
Replies: 120
Views: 5307

Re: CPM SPY27 steel

Ankerson wrote:
Sat Jan 18, 2020 11:25 am

It should be better performing than VG-10 from looking at the alloy content. :)
If it is run at any reasonable hardness it should perform noticeably better than VG-10. More carbon, more Moly, more vanadium (2% vs 0.1-0.3%, and added 1% Niobium.
by Chumango
Fri Jan 10, 2020 6:23 am
Forum: Spyderco General Discussion
Topic: 25K Post Contest
Replies: 140
Views: 4021

Re: 25K Post Contest

25 K posts. Far more than me!

725 for me, and thanks for the chance.
by Chumango
Wed Nov 27, 2019 8:35 pm
Forum: Spyderco General Discussion
Topic: DLC and rust.
Replies: 66
Views: 1751

Re: DLC and rust.

If you take the DLC by itself only, yes, you are correct. But thanks to surface tension, oil will infiltrate and bond to do sides of those "pinholes", cracks or any other microscopic imperfections, sealing them (of course, not forever, the oil can be displaced with other materials, react chemically...
by Chumango
Tue Nov 26, 2019 9:28 am
Forum: Spyderco General Discussion
Topic: DLC and rust.
Replies: 66
Views: 1751

Re: DLC and rust.

It is better to have no coating than to have a coating with imperfections, at least in terms of structural failure. A good paint layer will protect carbon steel, but a paint layer with pinhole imperfections can actually lead to premature failure of the substrate (for example a chemical tank with coa...
by Chumango
Sat Nov 23, 2019 5:22 pm
Forum: Spyderco General Discussion
Topic: Knifejoy Exclusive Para Military 2
Replies: 173
Views: 9549

Re: Knifejoy Exclusive Para Military 2

Seeing how 20CP is simply an analog of Crucible CPM S90V, and we have lots of S90V sprints. 'Spect it's cheaper to buy Crucibles version? It's 20CV. No. We are referring to 20CP, not 20CV. Spyderco used to make sprints in 20CV and it was awesome. This was about a decade ago. In my experience it out...
by Chumango
Sat Nov 23, 2019 5:13 pm
Forum: Spyderco General Discussion
Topic: K390 PM2 | Testing
Replies: 62
Views: 3844

Re: K390 PM2 | Testing

They followed Hitachi's recommended hear treat for the clad Hap 40, and Crucible's for Rex 45, and the results were different. From page 6 of the CPM Rex 45 Edge Performance thread "HAP 40 is heat treated in Japan. They have their own heat treat methods due to the laminate. REX is made by Crucible i...
by Chumango
Sat Nov 23, 2019 1:34 pm
Forum: Spyderco General Discussion
Topic: Knifejoy Exclusive Para Military 2
Replies: 173
Views: 9549

Re: Knifejoy Exclusive Para Military 2

Chris_P_Bacon wrote:
Sat Nov 23, 2019 1:16 pm
Seeing how 20CP is simply an analog of Crucible CPM S90V, and we have lots of S90V sprints. 'Spect it's cheaper to buy Crucibles version?
It's 20CV.
by Chumango
Thu Nov 21, 2019 4:35 pm
Forum: Spyderco General Discussion
Topic: Taxes on online knife purchase
Replies: 52
Views: 4286

Re: Taxes on online knife purchase

Don't mind paying taxes for those purposes but its all the wasteful spending, misplaced priorities, and bad management in the federal and state governments that occurs that I have issues with..this is getting borderline political. States without a state income tax- Alaska Florida Nevada South Dakot...
by Chumango
Wed Nov 20, 2019 11:01 am
Forum: Spyderco General Discussion
Topic: More 4V anyone?
Replies: 41
Views: 1849

Re: More 4V anyone?

What exactly would 4V give me that is enough improvement over M4 and Rex 45 (both of which I have) to justify buying it? For folder use improved toughness is not a determining factor for me, as the others I mentioned are fine in that regard.
by Chumango
Wed Nov 20, 2019 9:40 am
Forum: Spyderco General Discussion
Topic: Military 2. What exactly is going on?
Replies: 245
Views: 11509

Re: Military 2. What exactly is going on?

No, that is just over a year of hard use and how the picture turned out. You can tell by the blade size it's been sharpened probably over 100 times. Scrubbing and magic eraser will make it slightly more purple, but it's certainly much darker than a new one. Sharpened over 100 times in a year due to...
by Chumango
Mon Nov 18, 2019 1:05 pm
Forum: Spyderco General Discussion
Topic: Going against the grain
Replies: 92
Views: 3353

Re: Going against the grain

That's why I added "depends on the work environment". I also live in the South, but believe me not all areas are the same. ;) Yeah, I visit NC from time to time, and the vibe I get is that the research triangle and some areas around Charlotte are not as gun friendly as other parts of the state, and...
by Chumango
Mon Nov 18, 2019 12:09 pm
Forum: Spyderco General Discussion
Topic: Going against the grain
Replies: 92
Views: 3353

Re: Going against the grain

When their eyes glaze over and pupils dilate, you know they're thinking "serial killer?" or "militant survivalist?" Lol. I guess my (sorta) against the grain is a lack of concern for edge retention. And trust me, I understand how holding an edge might be very important in various situations, I just...
by Chumango
Fri Nov 15, 2019 3:53 pm
Forum: Spyderco General Discussion
Topic: CPM M4 vs K390
Replies: 89
Views: 8890

Re: CPM M4 vs K390

Shawn, you clearly like K390. How would you compare 10V to it? Edge strength, edge it takes, edge it holds, all else being equal in terms of good heat treat and geometry.
by Chumango
Fri Nov 15, 2019 3:47 pm
Forum: Spyderco General Discussion
Topic: Seconds Sale.
Replies: 64
Views: 3623

Re: Seconds Sale.

Pancake wrote:
Fri Nov 15, 2019 2:22 am
If I only live in the USA.....enjoy the sales folks.
I live in the USA but 1,326 miles from Spyderco. I would spend a lot to save on a few knives.
by Chumango
Thu Oct 24, 2019 7:08 pm
Forum: Spyderco General Discussion
Topic: Sprint runs from Knives Plus?
Replies: 11
Views: 545

Re: Sprint runs from Knives Plus?

I got a Rex 45 Para 3 from them no problems.
by Chumango
Thu Oct 24, 2019 2:41 pm
Forum: Spyderco General Discussion
Topic: Police 4 Lightweight Observations
Replies: 50
Views: 4212

Re: Police 4 Lightweight Observations

How thick is the handle compared with the Military?
by Chumango
Thu Oct 24, 2019 1:23 pm
Forum: Spyderco General Discussion
Topic: Unpopular Blade Steels That You Like?
Replies: 92
Views: 4620

Re: Unpopular Blade Steels That You Like?

Back in the day (70s-80s) Puma used a basic stainless (1.4110, more or less similar to 440B) that they hot forged and heat treated well. It was easy to get sharp, and held an edge better than the 440C available (Buck). I once tested it against Benchmade 440C on cardboard, and it lasted about 10% lon...
by Chumango
Wed Oct 23, 2019 6:53 pm
Forum: Spyderco General Discussion
Topic: October and Rex45
Replies: 67
Views: 4032

Re: October and Rex45

I carried this one on a seven day backpacking trip the week before last (AT through the Smokies end to end). It was strenuous and plenty sweaty. It got a few pepper marks on the blade, which would likely have been worse if I had not wiped it down with Vaseline before the trip.
by Chumango
Fri Oct 18, 2019 9:28 pm
Forum: Spyderco General Discussion
Topic: The low grit sharpening thread
Replies: 85
Views: 3403

Re: The low grit sharpening thread

Another take on the grit chart

https://www.gritomatic.com/pages/grit-chart

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