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Old 06-15-12, 12:08 PM   #1
chris.....
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Yesterday I received

a set of 3M polishing paper. 1,2,3,9,15,30 microns.
I'm excited, are you?

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Old 06-15-12, 12:09 PM   #2
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8,000 grit?
Holy crap!
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Old 06-15-12, 12:10 PM   #3
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Can you take skin off w/ that?
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Old 06-15-12, 12:32 PM   #4
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3M is the best no doubt. I need to get some 800 and 1200 to finish up a project this weekend but I cannot buy locally. So I'll probably just settle for some of the cheaper wet/dry stuff I might be able to get at the True Value Hardware store.
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Old 06-15-12, 12:36 PM   #5
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It that polishing cloth appropriate for knob polishing?

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Old 06-15-12, 02:05 PM   #6
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8,000 grit?
Holy crap!
+1
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Old 06-15-12, 02:17 PM   #7
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Quote:
Originally Posted by ModoVincere View Post
8,000 grit?
Holy crap!



I have plenty of that. But we use it at work for polishing Fiber Optic connections. That's the course grade for that job.

Not sure what grit the .3 micron is.
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Old 06-15-12, 03:08 PM   #8
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I normally go to 600 grit on my knife handles. I have some black micarta slabs that I want to look like this, so I will take it to 8,000

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Old 06-15-12, 03:17 PM   #9
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Quote:
Originally Posted by chris..... View Post
I normally go to 600 grit on my knife handles. I have some black micarta slabs that I want to look like this, so I will take it to 8,000


Don't you mean you're taking it "Ova 9000"?


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Old 06-15-12, 03:21 PM   #10
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I have used even finer lapping film than this... but 8000 is pretty fine.
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Old 06-15-12, 03:23 PM   #11
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Quote:
Originally Posted by sevenmag View Post


I have plenty of that. But we use it at work for polishing Fiber Optic connections. That's the course grade for that job.

Not sure what grit the .3 micron is.
.3 has an equivalent of about 15,000
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Old 06-15-12, 03:27 PM   #12
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Quote:
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I have plenty of that. But we use it at work for polishing Fiber Optic connections. That's the course grade for that job.

Not sure what grit the .3 micron is.
Aproximately 24000 grit if it is a liner relationship I would think.
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Old 06-15-12, 03:38 PM   #13
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I normally go to 600 grit on my knife handles. I have some black micarta slabs that I want to look like this, so I will take it to 8,000

Wow! That's amazing. Seriously.

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Old 06-15-12, 08:54 PM   #14
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Aproximately 24000 grit if it is a liner relationship I would think.
I don't think it's linear. I have some 0.5 micron 3M polishing film from Lee Valley...and they claim 9000 grit on that. I don't bother using it...2000 grit puts a nice micro bevel on my chisels and knives. Any finer edge, and you just lose it too quickly for the effort to be worth it.
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Old 06-15-12, 09:51 PM   #15
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Quote:
Originally Posted by Iron Parr8 View Post
It that polishing cloth appropriate for knob polishing?

I figured you were already the subject matter expert on that topic.
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Old 06-15-12, 11:04 PM   #16
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Once upon a time, I knew the equation for going from grit to particle size... would have been metallography class in '97.

Seems to me we never used finer than 1200 grit on our samples.
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