Questions

I have a question.

When grinding the edge bevels, prior to heat treatment, how thin or thick should they be? I understand you will finish grinding after heat treatment, but what is the sweet spot for edge thickness prior to heat treat to avoid the blade cracking (during heat treat), and to avoid having to grind a lot on a hardened edge?

Thanks John.
 
I usually do like 1066vik said, give or take a few thousandths
Tetsujin 140.6 said:
I have a question.

When grinding the edge bevels, prior to heat treatment, how thin or thick should they be? I understand you will finish grinding after heat treatment, but what is the sweet spot for edge thickness prior to heat treat to avoid the blade cracking (during heat treat), and to avoid having to grind a lot on a hardened edge?

Thanks John.
Click to expand...
 
Actually I have a serious question. (feel free to post the kick ass response to my question above if you are a Monty Python fan) Your knives are always extremely strong. I find them durable and strong - even when I use them incorrectly (apply force to the left or right instead of just in the cut direction). I have also seen some of the abuse videos and been impressed with people using sledge hammers on your knives. What make them so strong? Is it your heat treat process, the metal choices, both, or something else?
 
Hi,
So basically I bought a magnetic knife strip (baccarat artisan, to be exact), I own baccarat knives and was recently sharpening them. After sharpening them I noticed some small surface rust on the knife strip (must be from not completely drying the blade before putting it back). I decided to take a small price of steel wool and just give it a quick scrub, however that has resulted badly. Some how the knife strip is now unable to hold the weight of the bigger knives and they just drops to the bench.

I don’t know how to fix it, and there is nothing on the internet about what to do. The minuscule scratches on the knife strip is the only thing I can put it down to, does anyone have an suggestions? I thought about maybe the steel wool has demagnetised the magnet? Though it continues to have strength just not enough to hold the larger knives? So that can’t be it, let me know what you think? Also wifey is coming home soon, she going to be pissed.
 
JK Knives said:
Heat treat and steel. Plus, I’m damn good!
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M Mr. Bill This! HT is massively important to the structural integrity of steel and John seems to have found a way to get very good results with O1. Edge retention isn't super steel good but you don't have to worry about chips either. And it sharpens like a dream in my experience. Easily one of the better choices for ease of maintenance in the field without the worry of blade damage.

His S30V, hard as heck and there's a clear difference trying to reprofile the edge of his knives vs the manufactured knives I have with S30V. I've been practicing convex edges and working on the Element hunter I have in S30V took a long time. I got a lot of practice that night.

@f1addict got one of the 1st convexed edges I did in the bluegill he currently has for trial. It felt great when I finished it and I'll be eager to see how he likes the finish when he's all done.

While John uses a limited number of steel options, he gets a lot out of them from the 3 steel choices I have from him (O1, S30V, 154cm).
 
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Jerm05 said:
Hi,
So basically I bought a magnetic knife strip (baccarat artisan, to be exact), I own baccarat knives and was recently sharpening them. After sharpening them I noticed some small surface rust on the knife strip (must be from not completely drying the blade before putting it back). I decided to take a small price of steel wool and just give it a quick scrub, however that has resulted badly. Some how the knife strip is now unable to hold the weight of the bigger knives and they just drops to the bench.

I don’t know how to fix it, and there is nothing on the internet about what to do. The minuscule scratches on the knife strip is the only thing I can put it down to, does anyone have an suggestions? I thought about maybe the steel wool has demagnetised the magnet? Though it continues to have strength just not enough to hold the larger knives? So that can’t be it, let me know what you think? Also wifey is coming home soon, she going to be pissed.
Click to expand...

How strong is the magnet to pull directly off of the strip, assuming you have it affixed directly to that wall so knives hang vertically? I doubt you demagnetized it significantly but you may have reduced the surface area of the knife/strip interface enough to reduce friction between the strip and blade as there would be some drag. I would see if the strip is strong enough first by simply trying to pull it off.

Another option would be to try and hang laterally so there is more steel in contact with the strip.
 
bikerector said:
How strong is the magnet to pull directly off of the strip, assuming you have it affixed directly to that wall so knives hang vertically? I doubt you demagnetized it significantly but you may have reduced the surface area of the knife/strip interface enough to reduce friction between the strip and blade as there would be some drag. I would see if the strip is strong enough first by simply trying to pull it off.

Another option would be to try and hang laterally so there is more steel in contact with the strip.
Click to expand...

hi, thank you for the response.
The knife strip is drilled to the walled, the backing anyhow. The magnet still contains its strength to the strip. Undoubtedly very strong still, yes the knives hang vertically to the horizontal strip. Hanging it laterally would not have enough room for all the knives.

At closer inspection there is a series of scratches on the strip now from the steel wool. Wondering whether a buff of the strip itself, smoothing out the scratches might be enough to regain the surface strength to hold the knife maybe?
 
Jerm05 said:
hi, thank you for the response.
The knife strip is drilled to the walled, the backing anyhow. The magnet still contains its strength to the strip. Undoubtedly very strong still, yes the knives hang vertically to the horizontal strip. Hanging it laterally would not have enough room for all the knives.

At closer inspection there is a series of scratches on the strip now from the steel wool. Wondering whether a buff of the strip itself, smoothing out the scratches might be enough to regain the surface strength to hold the knife maybe?
Click to expand...

The buff should help, I would try it as you don't have much to lose if it's not working out for you right now.

If you don't want hang laterally, try using the widest part of the blade on the strip. You could look at storing at an angle as well. The goal is to try and get as much steel in contact with the strip as possible.

You may want to clean the mag strip and knife if you used a lube on the knife to prevent further rust or staining.

I haven't looked at the cost of mag strips in a long time but replacing the magnetic strip piece may be a solution as well that isn't too expensive.
 
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