lap a coticlue?

Hi all, I'm all excited because today in the mail I should be recieving my Norton 220/1000 and my belgium coticule. I assume the Norton needs to be laped, but what about the coticule. Will I need to flatten it before use?

Thanks!
Matt

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Originally Posted by shaveshell

Hi all, I'm all excited because today in the mail I should be recieving my Norton 220/1000 and my belgium coticule. I assume the Norton needs to be laped, but what about the coticule. Will I need to flatten it before use?

Thanks!
Matt

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You'll need to lap it, tutorial for lapping here

Thanks! I assume my Norton flattening stone would work for this purpose?

-Matt

I don't have a Norton flattening stone, so I don't know if will survive the coticule, maybe JoshEarl or someone more experience in lapping will chime in

I haven't tried lapping a coticule with a Norton flattening stone, but I wouldn't recommend it. Smaller hones can wear a depression into the center of the flattening stone, which doesn't help it's performance on the bigger 8x3 hones.

I'd suggest sandpaper for the initial lapping. You probably won't need to lap it again for months, if not years.

Josh

The Norton Flattening Stone is so coarse that I don't even
like to lap Nortons with it, let alone coticules. Josh's thread
will point you in the right direction regarding coticule flattening.

- Scott

I use the Norton Flattening stone to do the work, but then I hit 600-1000 grit sandpaper to smooth things out a littel :shrug: Seems to work ok.

Jordan

before worrying about lapping the coticule I would inspect it and try it. If its a quality stone it probably does not need it. I have never lapped mine and it works fine. The Norton on the other hand I would plan on lapping.

when i order my belgian stone from howard i am going to pay the 5 dollars to have him flatten it then i can sell my norton 4000/8000 here for 50 bucks

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Originally Posted by jwoods

when i order my belgian stone from howard i am going to pay the 5 dollars to have him flatten it then i can sell my norton 4000/8000 here for 50 bucks

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before you sell your Norton I hope you have a replacement for it. The coticule is not a replacement for the Norton either the 4K or the 8K.

Howard now charges 5 dollars to flatten and chamfer new stones, which
in my opinion is absolutely worth it. I recently received a new coticule
in factory condition that required quite a bit of flattening, not to mention
the relatively coarse scratch marks that were present on the surface.

I can now see how much work Howard was having to put into each and
every stone that he shipped :)

- Scott