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Hollow Grinding

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Forum topic by ChunkyC posted 09-28-2009 04:19 AM 1328 views 0 times favorited 4 replies Add to Favorites Watch
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ChunkyC

856 posts in 2717 days


09-28-2009 04:19 AM

Being a power tool kind of guy and not much into the hand tools, I’ve not much experience with sharping tools. So …

I have a 8” bench top Wilton Grinder. Is this too big for Hollow Grinding chisels? I’ve seen videos of this being done but with much smaller grinders. I got some projects on the list that will require mortising. No doubt this will require the use of good sharp chisels.

Thanks,

Chunk

-- Chunk's Workshop pictures: http://spadfest.rcspads.com/thumbnails.php?album=135


4 replies so far

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Karson

35035 posts in 3864 days


#1 posted 09-28-2009 04:37 AM

The purpose for the hollow grind (in my opinion) is to faculty the resharpening where you only have a small amount of metal to remove in order to get the tip sharp again.

Having an 8” grinder should not make much of a difference.

-- I've been blessed with a father who liked to tinker in wood, and a wife who lets me tinker in wood. Southern Delaware soon moving to Virginia karsonwm@gmail.com †

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TopamaxSurvivor

17670 posts in 3139 days


#2 posted 09-28-2009 07:58 AM

The radius of the hollow grind would just be shallower or you might not be able to hardly notice it. Should still be able to sharpen just fine.

-- Bob in WW ~ "some old things are lovely, warm still with life ... of the forgotten men who made them." - D.H. Lawrence

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Marc5

304 posts in 2805 days


#3 posted 09-28-2009 11:58 AM

I have a Jet wet grinder with a 10” wheel and it works fine. I agree 6, 8 10 doesn’t matter. Hollow grinding really speeds up honing either by hand or with a jig and in my case I tend to keep them sharp because it takes a minute to touch them up while in use. Good luck.

-- Marc

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stefang

15512 posts in 2797 days


#4 posted 09-29-2009 10:14 PM

I have a bench grinder which of course gives a hollow grind, but frankly I think that a micro bevel that I hone onto all of my chisels mitigates the need/advantage of a hollow grind, at least from a standpoint of doing touch-up honing.

-- Mike, an American living in Norway.

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