Manufacturer Part Number: 06W456|Disc Diameter|4-1/2Center Hole Size|Center Hole Thread Size|5/8-11Flap Disc Type|Type 27Grit|60Grade|MediumAttachment Type|Threaded Arbor HoleAbrasive Type|CoatedAbrasive Material|Zirconia AluminaBacking Material|Wood FiberDisc Color|BlueMaximum Rpm|13300Backing Weight|Material Application|SteelsMachine Compatibility|For Finish|Abrasive Material Thickness (Inch)|Trimmable|YesAdditional Information|Series|AllSteelPsc Code|UNSPSC Code|31191506