Tough aluminum oxide abrasive mineral cuts fast and performs well on many substrates 3M 341D Spiral Band 40187 - 2 in x 2 in - Aluminum Oxide - 36 Industrial Sanding Supply 3M Cloth Roll 341D, P180 X-weight, 6 In X 50 Yd, ASO, Single-flex Die Grinder Accessory 3M Abrasive Cloth Band 341D is a spiral band or short tube that conforms to inner and outer contours for sanding and shaping. Fast-cutting aluminum oxide abrasive grains are resin-bonded to a durable cloth backing to provide fast continuous cut and long-life performance Resin bond withstands high heat and pressure Brand: 3M · Abrasive Type: Coated · Band Diameter: 2 in · Band Width: 2 in · Grade: Very Coarse · Grit: 36 · Maximum RPM: 6000 · Abrasive Material: Aluminum Oxide Tube-shaped band fits inner and outer contours to remove parting lines, imperfections, and burrs