i had to get the one that goes on my drill cuz the one that went on the angle grinder was too big for my angle grinder unless i took the gaurd off...which i dont do. its
3M Scotch-Brite Paint & Rust Stripper large area, 101mm,
and i think the part number (its on the lower right corner of the face of the carboard its attached to) is 07771NA
it says that it should not exceed 3500 rpm
hope that helps, fast eddie outty