Great for SHAPING polymer clay (plastics) and PREPARING metals for a high polish. Leaves a very fine finish at the last step (9 micron). It cuts fast and gives precise, consistent finishes. Follow up with a FELT DISC and COMPOUND for a quick and easy polish. Anie highly recommends using these with Cushion Pads, each one on a Backpad. PROJECT IDEAS: JEWELRY: Sand and prepare polymer clay pieces for a high polish. Works great for progressively sanding metal castings. AUTOMOTIVE: Finely sand painted or primed spots, metallic powertrain components (gears, cams, valves, etc…) WOODWORKING: Sharpen & hone chisels, turning tools and carving tools. Material description: High-strength polyester film backing coated with premium, micron-graded mineral particles that are electrostatically oriented for greater cutting efficiency, and resin-bonded for increased durability. Available in the following grades: 60 micron (260 grit) Clear w/ Brown Text30 micron (380 grit) Clear w/ Green Text15 micron (800 grit) Clear w/ Orange Text9 micron (1000 grit) Clear w/ Blue Text, SKU: AM-13009-6 UPC: 014891157064 Brand: 3M MPN: AM-13009-6 Made In: United States Micro-Tools makes every attempt to provide accurate information for each item. Actual packaging and/or specifications may be slightly different from the information and picture provided.L043L