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Posted: Wed Jul 24, 2013 7:44 pm
by springnr
... or $69, this suckers fate was cast when forged, no babyin' here, them thar flames from the heat treat were a warnin' of what was ta come
:>)
Posted: Wed Jul 24, 2013 9:19 pm
by Ankerson
Reprofiled and sharpened the K390 Mule today for testing. :)
Wasn't bad with the SIC stones, it's fine grained and seems to be very clean, sharpened up very well.
Posted: Wed Jul 24, 2013 9:32 pm
by Ankerson
chuck_roxas45 wrote:Thinking points I take away from this discussion.
*Steel choice comes down to what bevel angles we use on on our knives.
*How much performance difference is there between a 15 dps or 10 dps bevel and 5 dps?
*Is there anything to be gained by normal EDC uses in such thin angles over slightly thicker ones?
*Do the advantages of such a thin bevel outweigh the probability for edge damage?
*How long does the high sharpness on extremely thin angles really last?
I would say it depends on the knife and steel....
Usually the thinner the blade behind the edge the better to a point....
Usually the lower the angle the better to a point...
That said it can make a large difference in cutting efficiency.
For general EDC use?
I would say that depends.
Posted: Thu Jul 25, 2013 6:16 am
by senorsquare
Ankerson wrote:Reprofiled and sharpened the K390 Mule today for testing. :)
Wasn't bad with the SIC stones, it's fine grained and seems to be very clean, sharpened up very well.
I re-profiled the S110V the other day using a 140 grit diamond plate and then congress mold masters and I'd say it wasn't too bad either. Did not take as long as I thought it would and ended up with a very nice edge.
I'm sure that I'm not the only person who will be very interested to see the K390 test results. :D
Posted: Thu Jul 25, 2013 6:21 am
by chuck_roxas45
Ankerson wrote:Reprofiled and sharpened the K390 Mule today for testing. :)
Wasn't bad with the SIC stones, it's fine grained and seems to be very clean, sharpened up very well.
Yep, I'll be checking your thread frequently. Thanks for doing this. :)
Posted: Thu Jul 25, 2013 8:47 am
by Ankerson
chuck_roxas45 wrote:Yep, I'll be checking your thread frequently. Thanks for doing this. :)
Cutting with it now,
coarse edge, looks like they got it right so it's going to be awhile.....
Posted: Thu Jul 25, 2013 8:54 am
by GTPowers
I always feel less confident in my understanding of the rationale behind the knives purchase after reading these types of threads. There is always a "Wait, what?" response in my head.
-GT
Posted: Thu Jul 25, 2013 9:50 am
by Ankerson
Still in the process of testing the K390 Mule..... Cutting...... :eek:
Lets just say we really need a K390 Military tomorrow done with the same process. :cool:
Posted: Thu Jul 25, 2013 9:52 am
by xceptnl
Ankerson wrote:Lets just say we really need a K390 Military tomorrow done with the same process. :cool:
That's a bandwagon I would surely love to jump on. The Cruwear will hold me until then, but I'm ready to pay now...
Posted: Thu Jul 25, 2013 9:54 am
by Ankerson
xceptnl wrote:That's a bandwagon I would surely love to jump on. The Cruwear will hold me until then, but I'm ready to pay now...
Put it this way, no other production knife will even come close to K390, not even on the same planet.....
It just blew everything else away (Production knives) I have seen yet and I am still in the process.
Posted: Thu Jul 25, 2013 10:02 am
by Popsickle
Ankerson wrote:Put it this way, no other production knife will even come close to K390, not even on the same planet.....
It just blew everything else away (Production knives) I have seen yet and I am still in the process.
How is the native doing? K390 Millie would be awesome
Posted: Thu Jul 25, 2013 10:18 am
by Ankerson
Popsickle wrote:How is the native doing? K390 Millie would be awesome
Won't get the Native until next week..
Posted: Thu Jul 25, 2013 10:48 am
by bh49
senorsquare wrote:I re-profiled the S110V the other day using a 140 grit diamond plate and then congress mold masters and I'd say it wasn't too bad either. Did not take as long as I thought it would and ended up with a very nice edge.
Can you give an idea how long did it take to reprofile Native on 140 grit diamond plate and what angle did you reprofile it to?
Posted: Thu Jul 25, 2013 11:43 am
by Philo Beddoe
Ankerson wrote:Put it this way, no other production knife will even come close to K390, not even on the same planet.....
It just blew everything else away (Production knives) I have seen yet and I am still in the process.
Are you sure about that? I thought K390 wasn't a knife steel..I quote Mr. Stamp:
"
K390 isn't a knife steel, K390 is simply an attempt to increase the secondary hardening response of A11 which in general is a cycle which should be avoided in knives entirely because it sacrifices all other properties to gain heat resistance. This is why you will rarely see hot work tool steels used for cold work as they don't have an advantage there."
Posted: Thu Jul 25, 2013 11:46 am
by Ankerson
This is after 820 slicing cuts through 5/8" Manila rope.
Posted: Thu Jul 25, 2013 11:52 am
by Ankerson
Philo Beddoe wrote:Are you sure about that? I thought K390 wasn't a knife steel..I quote Mr. Stamp:
"K390 isn't a knife steel, K390 is simply an attempt to increase the secondary hardening response of A11 which in general is a cycle which should be avoided in knives entirely because it sacrifices all other properties to gain heat resistance. This is why you will rarely see hot work tool steels used for cold work as they don't have an advantage there."
Yeah OK...... ROFL
At 60% increase in edge retention over S90V I think Bohler would disagree....
Posted: Thu Jul 25, 2013 12:02 pm
by Popsickle
hmmmmmmm..... sometimes I just don't know what to say when people post here lol.....
Posted: Thu Jul 25, 2013 12:11 pm
by Fancier
I'm glad I didn't have to make 820 cuts through rope on a mule without scales! Thanks for all your efforts!
Posted: Thu Jul 25, 2013 12:13 pm
by Philo Beddoe
Ankerson wrote:Yeah OK...... ROFL
At 60% increase in edge retention over S90V I think Bohler would disagree....
I was being sarcastic
Its been my thought all along that K390 if properly heat treated will make a awesome knife steel..
Hopefully at least as good as the almighty razor blade approved AEB-L :rolleyes: :D
Posted: Thu Jul 25, 2013 12:29 pm
by endgame
I hope youwore gloves!