Disc Diam Opt Speed Max Speed Max Imperial Periph Speed Metric 4 12 8400 RPM 13300 RPM 15800 RPM 80 ms 5 7500 RPM 12000 RPM 15800 RPM 80 ms CE WH PHG 250 0808 Copyright 2008 by Wurth 05 0060 Recommended RPM 15800 RPM 80 MS Resin Fibre Disc Back Pad Size Art No 4 12 586580115 5 586580125 Size Art No 4 12 5867004 5 5867005 7 5867007 Soft Metal Resin Fibre Discs Designed for use on soft metals like bronze brass and aluminum C ut soft metals fast Lower the temperature of the interface between disc and media R emove larger media chips Lubricate as they grind R esist loading Greater longevity O utlast conventional aluminum oxide discs RPM 13000 45 and 12000 5 Advantages A reduction in the number of discs used Longer working life of disc Less down time Faster cut rates and better surface finish Diameter Art No 4 12 115 mm 580412 Grit 5 125 mm 5805 Grit Please refer to the Wurth Canada Price list for grits available Backing Pads Air Cooled E asy to assemble M ax RPM 13000