3M Cubitron II Depressed Center Grinding Wheel, 64319, T27 QuickChangeGeneral Information Brand Cubitron Attachment Type Threaded Bond Type Resin Wheel Type T27 Country Of Origin Austria California Residents Proposition 65 Warning Dimensions and Specifications Center Hole Thread Size 5 8" 11 Grit 36+ Maximum Speed 80 m s Overall Diameter (Imperial) 7 in Overall Diameter (Metric) 180 mm Overall Thickness (Imperial) 0. 25 in Overall Thickness (Metric) 6 mm Micron Grade Non Pertinent Other Details Industries Metalworking