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Showing 1 of 12 conversations about:
Spyderco Police 4 G-10 Folding Knife
sloppy
7
Jan 28, 2019
Why k390? Odd. Guess that’s for the patina lovers.
(Edited)
Notsurewhyibother
1200
Jan 28, 2019
sloppyk390 is amazing as long as you don't live in a rust prone environment. It has better edge retention and toughness than m390, you just have to oil it now and then.
Bob_Velle
27
Feb 7, 2019
NotsurewhyibotherI have a couple m390 blades, but this will be my first K390. If what you say about its edge retention and toughness is true...I'm in for a real treat. My Zero Tolerance in M390 steel has been the most impressive blade I've ever owned. IMHO it beats my M4, S110V, 20cv and CTS-204p blades in holding an edge and not chipping or rolling. Of course it could be I just got lucky and ended up with a rare combination of perfect edge geometry coupled with an exceptional heat treat.
Hatuletoh
850
Apr 10, 2019
Bob_VelleYou didn't get lucky, you just got some ZT M390. I've always rated CPM 20CV as a bit better than M390, but ot occurred to me a while ago that that may be because all the knives I own with 20CV, save for a relatively new Strider, are ZTa. And they just seem to do everything very well. Also, the majority of my knives with M390 blades are Microtechs, and while they have the most amazing hand-ground bevels on them, so that the blades are literally sharp like razor blades, the fineness of the cutting edge means that razor sharpness doesn't last as long as it would on a nice, beefy ZT blade. So maybe my slight preference for 20CV comes down to comparing apples to oranges by the measure of which one makes better pie. So to speak.
I'd love to get my hands on some ZT-made M390 with an identical blade shape to one of their knives with 20CV for a true comparison. High quality problems for sure; hard to even picture the days in the when people went thought AUS 8 was a great blade steel.
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