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Wet and dry grinding wheels.

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Silfi

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I would appreciate advice on the use of bench grinders and wet wheels to sharpen chisels and plane irons.
Up till now I have been happy using a white (aluminium oxide?) wheel on an ordinary bench grinder and then a Scheppach wet grinding wheel. This has produced a sharpness which is OK for me, however recently both wheels have lost their 'cutting edge'and take a long time to resharpen.
I purchased a cheap block from Ebay supposedly coated with diamond particles but this has had no effect on either wheel.
How do I restore the grinding effectiveness of both wheels?
 

Jelly

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I find the Huntington dressers to be the only effective way to dress offhand grinding wheels.

I have a diamond for dressing surface and tool grinders, but the back pressure when doing that with a single point tool is well beyond what's controllable without a fixture.
 

J-G

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I only ever use a single point Diamond Dresser and always by hand and no fixture of any kind - but then I did do a full 5 year apprenticeship and learned to sharpen all manner of tools by hand - including sub 1mm Ø drills (but they are done on a diamond wheel now).

It just needs time and experience, neither of which is in great supply!
 

Silfi

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Thanks for your reply Sean. The block is out of stock at the moment but I have set an alert for it becoming available. Should have tried a decent quality one first!
 

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