The "Ask Nathan a Question" Thread

The Amazing Virginian said:
I'm stoopid, so patience please.

Are these 5" DEFs that will be on sale this Friday the same as the UF with the optional full double edged dagger grind, except being an inch shorter? Or are there other differences? Also . . . are these Delta 3V, or something else? TIA!
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I think it's five DEFs for sale, not 5" DEFs for sale.
 
Cap’n Smudge said:
“Read Post #1 Before Posting”

Nathan do you think if you posted the above part of the Buy, sell, trade thread title in red it would make any difference?
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I put that in there, Cap'n. I'll see if I can do that. It may be beyond my meager skills.

ETA: Not an option. I did put a red "Attention" banner on it.

ETA 2: And a "No Chit-Chat" reminder.

I pity the poor bastards reading on a small screen. 🥳
 
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The Amazing Virginian said:
I'm stoopid, so patience please.

Are these 5" DEFs that will be on sale this Friday the same as the UF with the optional full double edged dagger grind, except being an inch shorter? Or are there other differences? Also . . . are these Delta 3V, or something else? TIA!
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Sorry, it is the standard 6-in, that was a midnight typo
 
What’s a good oil to wipe down 3v blades with? I’ve got a decent amount of Slip 2000 EWL on hand.

Also, I’ve read the Delta heat treat adds a some corrosion resistance to 3v. If this is true, is it due to a surface Nitride type of process in the steel similar to Nitrided gun barrels?

Thanks
 
Jason M D. said:
What’s a good oil to wipe down 3v blades with? I’ve got a decent amount of Slip 2000 EWL on hand.
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Not nearly Nathan...but I'd say don't overthink it. Any handy oil will work. If you want something that will stay on the blade for a while, Tuf-Glide or Tuf-Cloth will coat the blade until it's abraded off.

I tend to use mineral oil like this...I don't find anything else to be necessary. It's cheap and readily available. EWL will do nothing special for a fixed blade.

af080109-6a37-40ae-8f57-78224a65a876.74ae5e2d1dbe1862ce1a674c9108760a.jpeg
 
Jason M D. said:
What’s a good oil to wipe down 3v blades with? I’ve got a decent amount of Slip 2000 EWL on hand.

Also, I’ve read the Delta heat treat adds a some corrosion resistance to 3v. If this is true, is it due to a surface Nitride type of process in the steel similar to Nitrided gun barrels?

Thanks
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According to Nathan, the Delta geat treat results in some free chromium that adds corrosion resistance.

IME, unless the knife is subjected to a lot of time in damp/wet/salty conditions, D3V doesn't particularly even need a coat of oil. I just wash and dry the blade after use (leaving gunk on it can obviously precipitate corrosion).

1 other consideration; will the knife be used for food processing? If it'll only ever be used for things like wood processing, then you can use whatever you like. If it might be used for food prep, then use something that's non-toxic (as Blues recommended, mineral oil will do).
 
I've owned this since 2015 and used it extensively. I'm sure I've put it away damp or otherwise borderline abused it, have never flitzed or polished the blade.

DMpmEVw.jpg


With the exception of a few pepper spots I haven't had significant corrosion or pitting of any kind. I'd say a cursory cleaning/drying after use is sufficient then call it a day.
 
bluemax_1 said:
IME, unless the knife is subjected to a lot of time in damp/wet/salty conditions, D3V doesn't particularly even need a coat of oil. I just wash and dry the blade after use (leaving gunk on it can obviously precipitate corrosion).

1 other consideration; will the knife be used for food processing? If it'll only ever be used for things like wood processing, then you can use whatever you like. If it might be used for food prep, then use something that's non-toxic (as Blues recommended, mineral oil will do).
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I have the Basic Field Knife strapped to my waterfowl backpack. I hunted 3 days in Cape Cod in January in some really nasty weather. The first day was 30mph winds and my gear got soaked with salt water spray. The second day it snowed in the morning and poured the rest of the morning while hunting. I forgot to take the knife out and wipe it down. I woke up the next morning and checked to make sure there wasn't any rust. None.
 
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Jason M D. said:
What’s a good oil to wipe down 3v blades with? I’ve got a decent amount of Slip 2000 EWL on hand.

Also, I’ve read the Delta heat treat adds a some corrosion resistance to 3v. If this is true, is it due to a surface Nitride type of process in the steel similar to Nitrided gun barrels?

Thanks
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The Delta protocol is one of the low temperature tweaks of 3V that does not utilize the secondary hardening hump. There is a process to get us there, where the secondary hardening hump is not necessary. We do this to enhance edge stability, through a number of mechanisms, not to improve rust resistance, but it is a side effect of the process. By avoiding the higher tempering temperatures, we are leaving the carbon locked up in the martensite where it does not react with the chrome as much. Forming fewer secondary carbides, leaving more free chrome, which enhances corrosion resistance as a byproduct of our efforts to improve edge retention in rough use.
 
Nathan the Machinist said:
The Delta protocol is one of the low temperature tweaks of 3V that does not utilize the secondary hardening hump. There is a process to get us there, where the secondary hardening hump is not necessary. We do this to enhance edge stability, through a number of mechanisms, not to improve rust resistance, but it is a side effect of the process. By avoiding the higher tempering temperatures, we are leaving the carbon locked up in the martensite where it does not react with the chrome as much. Forming fewer secondary carbides, leaving more free chrome, which enhances corrosion resistance as a byproduct of our efforts to improve edge retention in rough use.
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Thank you.
My brain hurts now 🤣
 
Handle size and scale question regarding UF/Shiv and UF2/Shiv2.0...

I never owned a Shiv but I always thought that that the handle design for the original UF and the original Shiv were pretty much the same so that different sets of scales could be swapped out between those two models.

If this is correct? Will the upcoming Shiv 2.0 also have the same handle design as a UF2?
 
PolRoger said:
Handle size and scale question regarding UF/Shiv and UF2/Shiv2.0...

I never owned a Shiv but I always thought that that the handle design for the original UF and the original Shiv were pretty much the same so that different sets of scales could be swapped out between those two models.

If this is correct? Will the upcoming Shiv 2.0 also have the same handle design as a UF2?
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The Shiv and UF could be swapped, but not they were not the same.

The same is true with the UF2 and the Shiv 2. They can be swapped, but as a rule they should not be.
 
Nathan the Machinist said:
The Shiv and UF could be swapped, but not they were not the same.

The same is true with the UF2 and the Shiv 2. They can be swapped, but as a rule they should not be.
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Did the Shiv have thicker steel stock then a UF?

As I recall the original EDC had ~1/8" stock width and the EDC2 had ~5/32" stock width and both have a slightly different primary grind geometry, so the scales are slightly thicker for the original EDC vs. EDC2 but they are still interchangeable. EDC1 scales on an EDC2 make for somewhat thicker handle profile and EDC2 scales on the EDC1 makes for a slightly thinner handle profile.

Edit: CPK Encyclopedia specs shows the Shiv 3V at .235" (ricasso) and the UF 3V at .188" (ricasso).
 
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Nathan the Machinist said:
I have seven big pieces of vintage International Paper Micarta coming in next week. They bought it from Westinghouse and later sold it to Norplex. It was made in my lifetime but it's still pretty old. It might be some pretty good stuff. It will be interesting to compare it to the old Westinghouse stuff.
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Are we talking like the old Westinghouse micarta or the Antique stuff?
 
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