To remove stock you want coarse to mirror polish, fine . Are you aware not to grind steel it will trash the diamonds . If I was to buy only 1 it would be 180 . If you have a Chinese grinder the bolt pattern may be off and axle diameter off I bought 2 different Chinese tool grinders and the diamond wheels had slightly different bolt pattern with flat heads slotting did not seem good idea.so I re drilled the flanges and tried to true up on loose axles .
Last edited by Ken Hosford; 03-27-2016 at 08:00 PM.
Reason: more info
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