They've spent the 80+ years since then building the most rugged
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D&D PowerDrive 420-5M-15 Synchronous Timing Belt
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Scotch-Brite EXL Unitized Wheel, Silicon Carbide, 10000 rpm, 3" Diameter, 1/4" Arbor, 2S Fine Grit (Pack of 1) sold2026 They've spent the 80+ yearsScotch Brite EXL Unitized Wheel, Silicon Carbide, 10000 rpm, 3" Diameter, 1 4" Arbor, 2S Fine Grit (Pack of 1) From the Manufacturer The 3M Scotch Brite EXL Unitized Wheels feature a soft, conformable consistency that effectively smoothes, deburrs and finishes the edges of metal alloys, as well as many plastics and composites. There are a wide variety of densities and grades available starting from a very soft 2 density for applications requiring a