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07-26-2011, 05:03 AM #1Senior Member
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Chinese 12k stone - Over 2.5 hours to lap ! ! !
I purchased one of these chinese 3" x 8" 12k stones that came in the mail today
It took me over 2.5 hours to get this stone lapped! What a pain in the (you know what)
Wow they are a hard stone and there is NO way i'm going to go through that again! lol
Anyway i took photos of each stage so you can see how far out this thing was.
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07-26-2011, 05:06 AM #2Know thyself
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Just out of curiosity, did you try the other side? Usually one side will take less work than the other. First thing I always do is check both sides, and then I pick which one I'll actually lap. If that was the closer side, that was pretty unlucky.
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07-26-2011, 05:11 AM #3Senior Member
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The bottom was Really bad!!!
I had to lap that as well or it wouldn't sit flat on my rubber mat - it kept rocking lol.
There is no way you could lap the bottom flat by hand. just enough to make it sit flat was en effort.
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07-26-2011, 05:20 AM #4'tis but a scratch!
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Holy big cow, that looked like a lot of work.
For the bottom, is it possible to just park it on a belt sander to flatten it?"These aren't the droids you're looking for." "These aren't the droids we're looking for." "He can go about his business." "You can go about your business."
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07-26-2011, 05:32 AM #5Senior Member
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Thats not a bad idea, anyone???
Anyway i after all that i put a blade on it.. it has a nice sound when sharpening! Got my blade nice and sharp too (photo below)
I went to test it on the back of my hand.. woopsStr8Shooter likes this.
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07-26-2011, 05:35 AM #6Senior Member
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Walking away uninjured ... you're doing it wrong.
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07-27-2011, 12:54 AM #7
You overpaid for your hone and wasted all this time lapping it. I can get the exact same result with any 'ebay special'
Originally Posted by Brighty83
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07-26-2011, 07:15 AM #8Senior Member
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I just found out you can! I thought why not give it a go so I lapped the bottom almost flat with a 6" disk sander. I'm now lapping it now with my dia-flat. Will post some pics up soon.. Originally Posted by roughkype
I really hope that dust isn't carcinogenic! ! !Last edited by Brighty83; 07-26-2011 at 09:07 AM.
MickR likes this.
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07-26-2011, 07:18 AM #9Member
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I picked up a 12k from Carbatec a couple of months ago and it was almost perfectly flat.
I'm completely surprised that two products out of China are so different, they normally have such stringent QA procedures
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Glad you got there in the end.
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07-26-2011, 07:41 AM #10May your bone always be well buried
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I foolishly bought mine from O.S thinking I had got myself a bargain. A week later my good friend Os (Onimaru55),in response to my telling him I had a C12k, said words to the affect, "I hope you got it from Carb-Tec and not from O.S, it's much cheaper to get them at Carba-Tec!" So of course I started kicking myself in the pants. Anyway I found mine needed some lapping too. I also had to do both sides.
Good to see you got it sharp there too, Brighty. Betcha not feelin' so Brighty now though are ya?!
Mick
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