Renewing points on rounded-off knives

Shmackey

Shmackey

Joined
May 5, 2000
Messages
1,478
After some overzealous use of my Sharpmaker, I noticed that two of my knives have slightly rounded points. What's the fastest way to bring them back to a good point? And how can I avoid the problem?
 
I too have this tip problem, but I get it after the use of an ordinary benchstone and after that a couple of diffrent dimond stones. I´ve been thinking of asking the forum community for advise but Shmackey got here first...
/Niklas
 
You need to reprofile the blade to a sharp point. I use an extra course stone file, the type you can get at the hardware store to sharpen lawn mower blades. Once you've got the point back, you need to re-sharpen it. To avoid rounding the point again, make sure the edge never goes past perpendicular to your sharpening stroke so that the tip is always trailing your stroke. If your stroke ever gets tip first, you are going to round the tip.
 
Sounds good. How do I do the reprofiling while (1) not removing too much metal and (2) keeping the edges blended together?

Is there any way I can do this with the Sharpmaker grey rods (maybe on the bottom as a regular stone)?
 
I just encountered this problem myself. I used an arkansas stone and sort of carefully sliced at it with the tip until I had the desired shape back, which of course dulled the edge. Then i resharpened the tip portion of the blade on the sharpmaker, being careful not to let the tip slide around the side of the stone at the end of my stroke, which was what caused the problem in the first place. I also re-shaped the top of the tip a bit by gently stroking it down the groove in the brown stone. Hope this makes sense.
--Josh
 
You remove exactly what you need to make the tip sharp, no more, no less. What is the tip profile, clip, drop, chisel?

Just file away at the edge until you get the desired shape. Be an artist. The result will be a portion of the edge which is not sharp. You will have to put the cutting edge back on it. Match the angles of the existing cutting edge. Go back on forth from side to side to keep the bevels as even as possible, keeping the edge straight. It isn't very hard. Just do it.
 
I used to round every point off, until I read someone's comments in the Spydie forum. If I need to remove a lot of steel, I use the edges of the stones, but I stop short of the tip. (Regardless of what type of sharpener you're using, if the tip comes off the edge, it rounds it). Except for heavy steel removal, I use only the flats of the stones, being sure that the tip stays in contact and doesn't drag over the edge. Doing this has enabled me to keep my points needle sharp.

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Knowledge without understanding is knowledge wasted.
Understanding without knowledge is a rare gift - but not an impossibility.
For the impossible is always possible through faith. - Bathroom graffiti, gas station, Grey, TN, Dec, 1988

AKTI Member #A000831
 
Hi Guys

I´ve tried your tips on a couple of knifes and it seems to work just fine.
thankyousoverymuch
smile.gif


/Niklas
 
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