Standard Abrasives Quick Change Surface Conditioning XD Disc, 848482, A/O MediumGeneral Information Brand Standard Abrasives Attachment Type TR Country Of Origin United States Sold As Carton California Residents Proposition 65 Warning Dimensions and Specifications Hole Configuration Q300V Maximum Speed 20000 rpm Overall Diameter (Imperial) 3 in Overall Diameter (Metric) 76. 2 mm Backing Weight Non Pertinent Center Hole Thread Size Non Pertinent Grit Non Pertinent Micron Grade Non Pertinent Width 4. 5 in 11. 43 cm Height 6. 12 in