Polishing a scratched blade????

S

Slimman

Joined
Jan 9, 2008
Messages
198
Hello I left my new knife (Benchmade 710) over at a friends house while we were working on a project. He ended up using it and decided that he was going to sharpen it before giving it back. He didnt know what the heck he was doing. Now my blade is all scratched up. I took it to my sharpmaker and the cutting edge seems pretty good but it looks like I have been cutting rocks.....all scratched up just above the bevel. Can these be polished out?? It is a non coated D2 blade. Feel sick...my new knife looks like crap. Thanks for any advice. Just in case anyone is going to tell me not to lend out my knife.....I got that one:)
 
fairly easy to repair.

if it was originally a polished blade: some extra fine grit sandpaper (1500-2500 grit) followed by some metal polish, either flitz or mother's is what i use.

if it was originally more of a satin blade (grains visible): fine grit sandpaper only (600-1000 grit) should do it.
 
Let’s see if we can find the right forum …
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I'd recommend using a little crocus cloth or something like a polishing pad of some kind. You'll initially put finer scratches on the blade, but they'll polish out with a little Semichrome or other polishing cream. If you don't get those initial scratches out, you'll end up with a buch of shiny scratches and little more.

The good news is that it's easy to fix. I also bet if you give Benchmade a call, you can send it to them and they'll do it for you, gratis.
 
I dont know what you would call this blade. It is defintely alittle grainy. If you run your fingernail up and down the balde you can feel all of the little ridges in it. Actually you can see them all if you look close. By sanding this am I going to creating a mess of this natural pattern in the blade? Thanks

One good thing is after I got this back I was so bummed out I spent about an hour and a half with it on the Sharpmaker trying to fix it up. It still looks crappy, but it is considerably sharper then what it came like from Benchmade.
 
I've handled the 710 and it has the same finish as my benchmade griptilian. It's very smooth (not the edge, but the flat side of the blade) so just do what MORIMOTOM said and polish out the abbrasions. It will feel like the worst thing in the world at first, but just have faith and start polishing the blade.
 
Slimman said:
I dont know what you would call this blade. It is defintely alittle grainy. If you run your fingernail up and down the balde you can feel all of the little ridges in it. Actually you can see them all if you look close. By sanding this am I going to creating a mess of this natural pattern in the blade? Thanks

One good thing is after I got this back I was so bummed out I spent about an hour and a half with it on the Sharpmaker trying to fix it up. It still looks crappy, but it is considerably sharper then what it came like from Benchmade.
Click to expand...

if you can see the grains, it is satin. a mirror polish looks, well, like a mirror.

it will take some time, and patience. start with a grit that makes larger grains than the original finish and the scratches, sanding perpendicular to the scratches.

then go up in grit, each time sanding perpendicular to the previous work, until you have the desired finish. take care to sand straight, not angled or circular. using a block will help keep it consistent.

e.g.: start with 400, then 600, 800, 1000. that should give you a decent satin finish.
 
Ok....I give up. I cant get this thing to look right. I have been sanding, and sanding. Looks like hell. Much worse then when I started. I guess it will still perform the same but....shoot.. it looks ten years old.
Anybody got an experimental finish they have been wanting to try on a blade? I will volunteer my knife.
 
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