Greatest sharpening challenges

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Sep 7, 2006
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I am fairly proud of my sharpening skills. I have two kits, a Lansky crock set with gray and white rods and a Spyderco Sharpmaker. I use the Sharpmaker almost exclusively.

If I get a new knife its usually no problem to keep them sharp. I buy mostly prodos from top companies like Emerson and Spyderco so no probs there. However, used knives are another story...

My first real challenge was a Busse Battle Mistress. A mother of a knife! Now the Sharpmaker was designed mostly for folders, so how do you sharpen a brute fixed blade like the BM with it?

I ended up freehanding it with the gray stones and then touching up with the white. I wasn't really satisfied with the results until I drew the BM out a while back and sliced myself nicely on the thumb. It smarts doesn't it! :p

I guess I was expecting it to get as sharp as a Spyderco folder but its a different animal, made for chopping and other hard tasks. You dont want too fine an edge on such a blade.

I will say the edge has held up very well since I sharpened it. The rep that Infi has seems to be well deserved.

My other challenge was another used knife, this time a custom - a magnificent framelock Crawford Kasper with a satin finish S30V blade.

The knife was sharp - up until about half an inch from the tip. I think the dude must have been practising moves on a cardboard target and had neglected to resharpen.

S30V is a great steel and I have great respect for it. But it is a bitch to sharpen if it has gone blunt.

I again had to resort to freehand with the gray rods to get this edge back. This is nerve-wracking stuff on a $700 knife! (OK I didnt pay that but thats what they sell for new.)

The main problem was where the knife was blunt. The tip and near it is the hardest part of a knife to sharpen in my experience. The edge profile at the tip was also not as thin as the rest of the edge.

In any event I managed to achieve a result that I am 98% happy with. I decided not to send the knife back to Pat for a resharpen as a) it would expose it to an international return journey through the postal system and b) it would be quite expensive!

I am fairly proud of my ability to successfully sharpen knives in this way. I am not an expert by any means but given my limited resources and that I am entirely self-taught I can safely say that my knives are sharp enough to do the job!

Anyone else have a sharpening challenge they would like to share?
 
I sharpened a 16 inch (yes, the blade) "bowie" knife it took several hours ate up my stones because so much metal had to be removed, it was a hand made knife that a machinist made and tempered about 10 years ago... without ever being sharpened.

from now on, if the blade's that jacked up it's gonna hit a sander first, at least for metal removal.
 
I need somebody to sharpen this for me. I don't have any stones.... :cool:

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:p

Andy
 
thats a wicked looking knife. who made it? you need to put a convex edge on that thing. it would hold up much better.
 
Andy's brush hook emerges again... those ain't serrations, folks... that's a hard-used implement! Get thee to the belt grinder!

To the OP: if you're exclusively using the stones with a Sharpmaker, no wonder you're getting some challenging sharpening tasks! I don't know where I'd be without a cheapo belt grinder to help with the extremely dull blades. However, even having such a device, there have still been a few specimens in my collection that I still fail to get hair-shaving sharp. :( My HI Everest Katana is one, mostly because of a botched earlier attempt at using japanese waterstones on it, at what I would later learn was at too obtuse an angle. Another blade that was challenging, mainly due to its sheer size was the Valiant Trading Company UL-13... getting around 4 feet of blade sharp with ceramic rods and diamond sleeves ain't easy!
 
Sorry Andy. I shoulda played along:

"AW! That's the limited edition Suburban Ninja Tactical War Sickle! The serrations can cut through kevlar!" :D
 
I personaly don't like sharpening the front stabby part of tanto blades.
It's just awkward.

I also don't like the end of the stroke on the main cutting edge since it requires stopping before you slide messily off onto the angled part and round that sharp 'secondary point'

The design has it's advantages, and they look darned cool...but I'm leaning more toward blades with a single continious edge these days.
 
Another blade that defeated me was the Emerson Commander. Chisel grind combined with recurve = :mad: :grumpy: :(

Chisel ground tantos are a bit of a challenge, but so far so good.

I haven't had to sharpen a zero ground edge yet.

I dont have the belt set-up unfortunately so I go with the rods. Its been an interesting learning experience. I'm glad to say that most of the knives I sharpen end up sharper than when I started, but I am not finished my journey yet.

But knowing how to sharpen a knife is a most useful skill to a knife collector. :p
 
But knowing how to sharpen a knife is a most useful skill to a knife collector. :p

Yep, if you've got sufficient sharpening equipment and know-how, even some cheapo knives can be made to perform well. The world is your proverbial oyster!

There you go! That was much better. :thumbup:

Now I wonder how much you could auction it off for with a new, tactical description? :D
 
Hardest knife to sharpen for me was the kershaw specbump. Took me forever to learn the curve of that knife.
 
Another blade that defeated me was the Emerson Commander. Chisel grind combined with recurve = :mad: :grumpy: :(

Chisel ground tantos are a bit of a challenge, but so far so good.

I haven't had to sharpen a zero ground edge yet.

I dont have the belt set-up unfortunately so I go with the rods. Its been an interesting learning experience. I'm glad to say that most of the knives I sharpen end up sharper than when I started, but I am not finished my journey yet.

But knowing how to sharpen a knife is a most useful skill to a knife collector. :p
Load leather shoe strings with green rouge, secure them on one side to a table or whatever else, put loose ends in your left hand, knife in the left hand and start stropping.
Recurves, karambits, they all end up "stupid-sharp" ;)
 
Another blade that defeated me was the Emerson Commander. Chisel grind combined with recurve = :mad: :grumpy: :(

Chisel ground tantos are a bit of a challenge, but so far so good.

I haven't had to sharpen a zero ground edge yet.

I dont have the belt set-up unfortunately so I go with the rods. Its been an interesting learning experience. I'm glad to say that most of the knives I sharpen end up sharper than when I started, but I am not finished my journey yet.

But knowing how to sharpen a knife is a most useful skill to a knife collector. :p

Funny, but Japanese use single bevel only to make knife easy to sharpen. Yanagiba require extreme high angle which is hard to keep with free hand sharpening - so they do gring blade only on one side and make opposite, not flat but slightly concave. In result you just drop blade on water stone on that side - so anyone will be able to sharpen it at angle craftsman design. Part near the spine will be polished a bit as well.

Thanks, Vassili.
 
Getting an AK-47 to really sharp has been one of my biggest (or longest) sharpening jobs to date. A great brush clearing tool. And it will even whittle a eentsy weentsy hair, too. :D


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My most challenging knife was a totally shot edge on a WWII Bayonet. I started with when I only had a standard kit Spyderco Sharpmaker (read no diamond rods) and no power equipment. I got the cutting edge sharp up to about 2" from the tip to shave, but from there it was convex and I gave up. Now that I think about it, I should dig that out and finish up my project.
 
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