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Thread: Hand Grinder Wheel Advice
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30th November 2012, 02:31 PM #1Junior Senior Member
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Hand Grinder Wheel Advice
I've managed to buy an 8" hand grinder from another forumite. As expected the wheel is quite worn (about 1" missing!), and I'm after a replacement so I can grind my hand tools.
I went to a local abrasives store today, and the sales man, although somewhat knowledgeable, really wasn't interested in helping me because I'm using a hand grinder. He told me that because I'm not spinning the wheel at 3000 rpm, he can't help me.
So now I'm after proper help! I have sigma ceramic stones (1000, 6000, 13000 from Tools from Japan) for the final sharpen, so I'm after bevel grinding and 'ding removal'. Can someone please tell me what I need!
I was previously told 46grit, 38a, k softness or softer, but this was by a guy with a high speed grinder.
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30th November 2012, 02:56 PM #2
You need something 8 inches, round and with grit. be a good idea to get multiple bushes which mst wheels should come with.
Jim davey sells a 3X Norton wheel 46 and 80 grit. I guess you could also import it
The sandpaper man sells a similiar norton but not 3X branded.
Australian abrasives wheels from CWS
Mc Jing
Timbecon
Seems to be no one in South Oz??
also another nuggett of advice from another forumite to me when i asked about a sharpening product was essentially "no i cant advise you". When i thought about this for a while i realised that i needed to work out what suited me best. No doubt you will try a couple of wheels its another one of those sharpening journey things.
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30th November 2012, 03:55 PM #3SENIOR MEMBER
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One question to think about is also what kind of steel you will be grinding most? O1 or HSS flavour? Some wheels are better than other even at slow speeds.
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30th November 2012, 04:31 PM #4Junior Senior Member
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30th November 2012, 04:33 PM #5Junior Senior Member
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30th November 2012, 05:38 PM #6
according to Jim: 46 grit for heavy grinding such as establishing a new bevel and 80 grit for putting a working edge on your turning tools or primary edge on your plane blades
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11th December 2012, 06:45 AM #7
I have used an 8" x 46# Norton "3X" on a hand crank for years mounted with Veritas Tool Rest and using the matching Veritas Blade Holders - it is my favourite. Estimated speed is 700rpm. It can still burn the steel if not careful but I use a thumb on the blade as a temperature gauge - let it air cool when too hot for comfort. NEVER dunk in water - the fast cooling with cause micro cracks at the tip resulting in premature edge degrading.
I also have a 2,800rpm electric with white wheel and an 1,100 electric with 80# Norton "3X".
Take Care and Stay Sharp,
Jim Davey
Jim Davey Planes & Sharpening - HomeTake care and Stay Sharp,
Jim Davey
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11th December 2012, 07:56 AM #8Junior Senior Member
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1st January 2013, 07:30 PM #9SENIOR MEMBER
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The guy is being a goose for not helping you! Your not missing something mate. I have some old 46grit and 80grit grinder wheels that have been downgraded to hand rubbing axe stones for tip up work out in the field. Also good for machete stones as well.
I think it's a great idea. A softer bond would be better but it works the same just slower. If you find an old bike, modify it to a peddle powered grinder!
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1st January 2013, 08:08 PM #10
Was thinking about this today. Where are you up to with it?
On the anarchist tool chest DVD schwarz recommended the 3 x wheels as well.
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1st January 2013, 08:58 PM #11Junior Senior Member
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Hand Grinder Wheel Advice
I've decided to go with Jim's recommendation. Just have to save up a few more dollars first...gotta both love and hate Christmas!
I might do a WIP when I've got the parts.
I've seen a snippet from chris's DVD on YouTube. Great from what I've seen. I'm planning on making an anarchist tool chest from Tassy Oak...a friend gave me an old entertainment unit...gotta love non-woodworking friends
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29th January 2013, 03:31 PM #12Junior Senior Member
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Hand Grinder Wheel Advice
A quick update: I've bought a 46 grit Norton from Jim Davey, it should arrive tomorrow.
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30th January 2013, 07:35 PM #13Hewer of wood
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Let us know how you go with it John. It's an interesting project.
Cheers, Ern
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30th January 2013, 11:29 PM #14Junior Senior Member
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Hand Grinder Wheel Advice
Here's what I'm up to.
The wheel arrived today, and after removing the tool rest (doesn't quite fit which means I need an after market one) and giving it a good clean in turps, I ended up with this:
ImageUploadedByTapatalk 21359548585.561024.jpg
The gears are in excellent condition
ImageUploadedByTapatalk 21359548631.159764.jpg
But after a trial run before painting it to make it look pretty, I ended up with a speed wobble! Here are some pics which I'm hoping are going to be self explanatory.
ImageUploadedByTapatalk 21359548912.609378.jpg
ImageUploadedByTapatalk 21359548931.350622.jpg
ImageUploadedByTapatalk 21359548952.899920.jpg
ImageUploadedByTapatalk 21359548974.223368.jpg
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30th January 2013, 11:33 PM #15Junior Senior Member
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Hand Grinder Wheel Advice
And the last pic that didn't fit on the last post
ImageUploadedByTapatalk 21359549050.086579.jpg
There is only 1 aluminium flange that goes 'inside' the centre hole of the wheel, the other side has a large flat washer. Have I got this right?
I've never had a woodwork grinder before. Will the slight wobble disappear after I use a trueing stick?
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