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 Post subject: Sanding spine and choile
PostPosted: Wed Mar 19, 2014 5:02 pm 

Joined: Fri Feb 07, 2014 2:08 am
Posts: 75
Location: Maryland
I have a dremel and I was wondering if anybody has used one to sand the spine and choile of there knives ? Any tips and what grit sand paper to use to smooth both out ?

Thanks


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 Post subject: Re: Sanding spine and choile
PostPosted: Wed Mar 19, 2014 5:53 pm 
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Joined: Tue Feb 05, 2013 6:00 pm
Posts: 2182
Cpeggs - I have used a Dremel to do the rough work on a Tanaka Ginsan 210 Gyuto, then finished w/sandpaper strips.

Unless you have a really rough spine/choil/neck, I would strongly suggest just using sandpaper strips. If you just want to round off sharp edges a little, maybe start with 400 grit and finish with 600. If you need more aggressive metal removal, I've had good success with 220, then 400. I cut strips about 3/4" by 6-8" and put the knife in a bench vise using a soft cloth. I also tape the knife edge when I have it exposed for the choil work to keep from accidentally cutting myself. Just use a shoe shine motion until you get the shape you want. It usually doesn't take much to round the edges off just a bit and make the knife much more comfortable. Less is usually more, here.

It's really easy to slip w/the Dremel bit and mark up the blade face. If you decide on the Dremel to start, use light pressure and really control the tip w/both hands, working slowly, checking carefully as you go - you can't put metal back on ;-).

Good luck


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 Post subject: Re: Sanding spine and choile
PostPosted: Wed Mar 19, 2014 6:13 pm 
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Joined: Mon Apr 23, 2012 7:36 pm
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Please don't use a Dremel any where on a knife.....PLEASE. I've seen many people completely screw up a knife using a Dremel. It spins SO fast and grabs onto the steel and goes racing this way or that. I've seen some use it successfully, but more often than not that is not the case.

I've never seen a knife that I couldn't round the spine and choil on in under 10 minutes with sandpaper....no sense taking the chance with a Dremel.



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 Post subject: Re: Sanding spine and choile
PostPosted: Wed Mar 19, 2014 6:17 pm 

Joined: Fri Feb 07, 2014 2:08 am
Posts: 75
Location: Maryland
Ok no dremel got it I will stick with sand paper thanks for the help


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 Post subject: Re: Sanding spine and choile
PostPosted: Wed Mar 19, 2014 6:24 pm 
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OK Adam, I'll take your lead and just say NO next time...I'm just too nice, I guess :-). I will refer to your comments for backup ;-). Everything you said is true.


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 Post subject: Re: Sanding spine and choile
PostPosted: Wed Mar 19, 2014 6:51 pm 
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Joined: Thu Nov 22, 2012 4:17 am
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That could have been ugly. Image



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 Post subject: Re: Sanding spine and choile
PostPosted: Wed Mar 19, 2014 6:54 pm 

Joined: Fri Aug 23, 2013 4:28 am
Posts: 167
Mark posted a video a while back and I use the shoe shine method with sand paper strips that he demonstrates. It usually goes pretty quick so I'll also jump on the no-Dremel wagon here.



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 Post subject: Re: Sanding spine and choile
PostPosted: Wed Mar 19, 2014 7:24 pm 
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Don't forget to not over do it too. I've seen rounded spines become so thin they're sharp.



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 Post subject: Re: Sanding spine and choile
PostPosted: Wed Mar 19, 2014 8:28 pm 

Joined: Fri Feb 07, 2014 2:08 am
Posts: 75
Location: Maryland
Just went and got 320 grit and 600 grit sand paper worked great now im waiting for my tanaka ginsan to arrive was told by steve that it was rough on spine and choile thanks again for the help


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 Post subject: Re: Sanding spine and choile
PostPosted: Wed Mar 19, 2014 8:52 pm 
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Joined: Tue Feb 05, 2013 6:00 pm
Posts: 2182
Yes, if it's like the 210 and 240 I saw, they put the work into the knife grinds and not the choil/spine. That's not necessarily a bad thing, though. For the money, it's got really nice grinds and it's pretty easy for the end user to put some work into cleaning up the choil/neck/spine to their liking. It's a different knife after a good cleanup on those areas IMO.


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