Manufacturer Part Number: 66254443320|Disc Diameter|4-1/2Center Hole Size|7/8Center Hole Thread Size|Flap Disc Type|Type 27Grit|36Grade|Very CoarseAttachment Type|Arbor HoleAbrasive Type|CoatedAbrasive Material|Zirconia AluminaBacking Material|Poly-CottonDisc Color|BlueMaximum Rpm|13300Backing Weight|Material Application|Steels; Stainless SteelMachine Compatibility|For Finish|Abrasive Material Thickness (Inch)|Trimmable|Additional Information|Series|GP-ZPsc Code|UNSPSC Code|31191506