3M coated 341D spiral band uses aluminum oxide as the abrasive material and has a diameter of 1/2 in. 3M incorporates this aluminum oxide material into the spiral band forming a grit of 80. All abrasive products that rotate or spin, such as the ones in this category, have a maximum speed at which you can run them. This 3M spiral band can be run at a maximum speed of 30000. Spiral Band: Aluminum Oxide, 80 Grit, Medium Grade 1/2" Diam x 1/2" Wide, Medium Grade, Abrasive Type: Coated, Abrasive Material: Aluminum Oxide, Grade: Medium, Grit: 80, Backing Material: Cloth, Backing Weight: X, Maximum RPM: 30000. Sold in packs/quantities as specified (Number of Items: 100). Item model number 051144-40227. UPC 051144402274.
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