Superior Electric GA-M1058-1 Grinder Adapter Converts M10x1.25 Grinder Arbor Threads into 5/8&rdquo;-11 Arbor Spindle replaces Makita 323015-A, Dewalt DW4900 Converts M10x1.25 Grinder Arbor Threads into 5/8-11 Replaces Makita P/N 323015-A, Dewalt P/N DW4900