Louver wheel - comes with 1 grit size (80), strong cutting force, long service life, suitable for polishing hard metals such as titanium alloys; great for rust removal, works well on hard surfaces 35pcs red sand disk, 15pcs nylon disk, 15 pcs blue ceramic disk, 1 pcs louver disk, 2 pcs black strip disk, 1 pcs compressed wool disk and 1PC1/4" handle rack, a total of 70 pcs set. Nylon grinding wheel comes in 3 types of grit (coarse/medium/fine); the superior hardness particles provide strong and fast cutting force, allowing it to work well on surfaces of various shapes, even rough surfaces. Ceramic grinding disc - 3 commonly used grit sizes (60/80/120) red sand disc 7 medium grits (36/40/60/80/120/180/240) to meet your various polishing requirements Wide application: used for cleaning and finishing of all metals, removing light rust, oxides and coatings; widely used in stainless steel, standard steel, Weight: 0.91932763254 pounds, Manufacturer: NONDK