Cryo 2 Sharpening Problems

[MichaelO1117]

Hi Guys,

I'm just getting into EDC knives as a hobby. I have a Cryo 2 with 8Cr13MoV. I tried sharpening in on my Norton stones that I use for my straight razors at a 20 degree angle but no luck. I bought cheap diamond plates 300 and 1000 grit but they only seem to make the blade more dull. Any suggestions??? Is Silicon Carbide better than Diamond plates for 8Cr13MoV steel??? Thanks!!!

 

[bucketstove]

Hi Guys,

I'm just getting into EDC knives as a hobby. I have a Cryo 2 with 8Cr13MoV. I tried sharpening in on my Norton stones that I use for my straight razors at a 20 degree angle but no luck. I bought cheap diamond plates 300 and 1000 grit but they only seem to make the blade more dull. Any suggestions??? Is Silicon Carbide better than Diamond plates for 8Cr13MoV steel??? Thanks!!!

Hi,


Can you describe in detail what exactly you're doing?
Are you using magic marker to see where you're grinding?
What angle did the kershaw come with?
Have you been able to sharpen anything other than straightrazors?

Straight razors come with built-in sharpening guide ,
so I suggest you make your own for diamond plate,
lean your coarse diamond plate against a stack of books ,
like a sharpmaker,
and grind until you have a burr
...


Think about what you're doing and what is happening. Take notes. Ask questions. Repeat.

 

[MichaelO1117]

I'm using the push pull method. I can get a burr on the first side....then I switch to the other side and get a burr on that side, using a 20 degree angle which is standard for most EDC knives. After I get a burr on the second side, I go back to the first side and unitil....when??? When do I switch to the higher grit?

 

[115Italian]

Once you raise a burr on both sides, you’re done. Knock the burr off with a stropping motion and call it a day or move on to the next grit. A diamond plate will make quick work on 8cr steel. You may be over sharpening, which dulls the blade.

 

[MichaelO1117]

Okay....I then get a burr on both sides again, strop to remove the last burr and keep moving on to the next grit. Is that it or am I missing something?

 

[David Martin]

Once you get a burr on one side, flip it over and work up a burr on that side. Flip it over and use a edge leading (same stroke) to remove the burr. Just work it with light pressure. Check the other side and do the same. Once you get to no burr felt, on either side, -- use your knife. DM

 

[MichaelO1117]

Thanks...I'm able to do exactly that method but the knife is just plain dull. I think it's the way it's heat treated. I've heard that can be a real problem with some blades.

 

[bucketstove]

Hi,

Thanks...I'm able to do exactly that method but the knife is just plain dull. I think it's the way it's heat treated. I've heard that can be a real problem with some blades.

Hi,
What does "plain dull" mean?
Will it scrape shave your arm hair in one direction but not another?
Are you using magic marker?
What stone are you on?
This is the simplest way to remove a burr. The burr is the glint at the edge you can see looking from the spine at the edge. Practice with your practice knife and diamond 300/1000 until you're confident.
Technique overcomes all obstacles

Shearing off a Burr Using High Angle Passes - Steel_Drake

I'm using the push pull method. I can get a burr on the first side....then I switch to the other side and get a burr on that side, using a 20 degree angle which is standard for most EDC knives. After I get a burr on the second side, I go back to the first side and unitil....when??? When do I switch to the higher grit?

On first stone,
raise burr,
flip burr ,
then move to next grit stone


on next grit stone,
you're looking to erase the scratch pattern of the previous grit stone
on both sides of edge

Okay....I then get a burr on both sides again, strop to remove the last burr and keep moving on to the next grit. Is that it or am I missing something?

Stropping ought to be the last step, unless you've got multiple strops ( 3 micron 1 micron ...)
No real point in using it inbetween stones
Learn to get the most out of your 300/1000 diamond plates for now