1A1 diamond grinder wheel is the most oftenly used grinding wheel,rough grit usually use 60# and 80#,medium rough grit usually use 120#,150#,180#, and fine grit is usually 240#,280#,320# and so on.Mostly,if you choose one grit/grain size,use medium rough grit can meet your requirement.If you want gind fast,use rougher grit,if you want a good surfacing result,choose fine grit.Well,what should I do if I want grind fast and have good finishing result.Use two or three grit.Use rough grit first,then fine grit.The smaller number is the rougher grain,the bigger number the finer grain.

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1A1 diamond grinder wheel
1A1 diamond grinder wheel
1A1 diamond grinder wheel
1A1 diamond grinder wheel
1A1 diamond grinder wheel
1A1 diamond grinder wheel