... #,320#,500#,600#,800#,1000#Grit loading15%-30%Colornatural,grey,white,red,orange,blue and so onLength1250±10mmBinding diameter45 ... deburring, grinding, and polishing of the surfaces of steel, stone, and other materials. Also useful for general surface treatment. ... , polishing or sanding. Machining, cleaning or structuring. Steel or stone, aluminium,porcelain, wood, hard metal, concrete or even granite: ...