... AND STEEL MODEL:T-130,T-140,T-170 GRITE:#8--LUX# USE FOR GRINGING GRANITE DIAMOND FICKERTDIAMOND TOOLS FOR GRANITEABRASIVE ... FOR MICROCYSTALLIZED PANELSMATERIAL MAGNESIA,DIAMOND AND STEELGRITE #8,#16,#36,#60,#120,#240,#380MODEL T-140,T-170The ... For granite ,grit:16,36,60,120,220,280,320,360,380