All my work knives for the last 35 years are high speed tool steel blades.
The k390 delica I just got might break the trend.
Nothing really. I don't have any and am not excited to get K390. Im not compelled to get 52100 either. Something interesting will need to get one of these in my collection.
It took me a while to get a Maxamet too. The right price landed me a Manix LW.Albatross wrote: ↑Tue Sep 08, 2020 5:48 pmI don’t have any Maxamet to reference, but from the testing I've seen, I don’t feel like I'm missing enough to worry about not having any. I do know that K390 doesn't seem to be giving people as much trouble as Maxamet has/does. I've also seen edge retention testing that puts K390 not far behind Maxamet. The added toughness and more forgiving nature of K390, makes it hard to beat.
K390 has better edge retention, as well as better edge stability, which means the edge won't deform as easily as Cruwear, but it's not as tough and not as stain resistant (as mentioned above). K390 is also more time consuming to sharpen.mikey177 wrote: ↑Wed Sep 09, 2020 2:11 amHow about K390 versus Cru-wear? The DLT exclusive Cru-wear Delica interests me somewhat, but being the same price as the K390 Delica, I'm wondering which would be the more advantageous choice for a general EDC folder.
From my understanding, K390 will have better edge retention, while Cru-wear will be tougher in terms of impact resistance (which might not really be important in a small folder).
If by "sticky sharp" you mean keenness, then a higher carbide percentage can only negatively affect the keenness of a blade as the carbide "clogs up" the edge because of the radical difference between the carbide and the surrounding alloy. K390 would not have an inherently sharper or keener edge than M4 as both are extremely wear resistant, and beyond that the skill of the sharpener and the abrasive used would be at least as relevant.