3M Flap Wheel 244D, 120 X-weight, Type 83, 2 in x 1/2 in x 1/4 inGeneral Information Brand 3M Wheel Type T83 Country Of Origin Germany Sold As Case Lead Time 2 days California Residents Proposition 65 Warning Dimensions and Specifications Backing Weight X Weight Grit 120 Maximum Speed 25000 rpm Overall Diameter (Imperial) 2 in Overall Diameter (Metric) 50. 8 mm Overall Width (Imperial) 0. 5 in Overall Width (Metric) 12. 7 mm Shank Diameter (Imperial) 0. 25 in Shank Diameter (Metric) 6. 35 mm Length 5. 5 in 13. 97