Backup Pad, Abrasive Mount Type Threaded Hole, Abrasive Mounting Quick Change System Not Applicable, Connector Size 5/8 In.-11, Connector Type Threaded Hole, Backup Pad Shape Round, Device Material Rubber, Density Hard, Maximum Operating Speed 8,600 RPM, Number of Vacuum Holes Non-Vacuum, Color Black, Overall Length Not Applicable, Overall Width Not Applicable, Overall Diameter 7 in, Overall Thickness Not Applicable, Product Type Disc Backup Pad