SHAFT ARBOR, FITS SHAFT DIAMETER 5/8 IN, FOR USE WITH DAYTON KEYLESS CHUCKS TO DRIVE VARIOUS SHANK-MOUNTED POWER TOOL ACCESSORIES, INCLUDES HEX NUT, MACHINED WASHERS, THREAD LENGTH 2 5/8 IN, THREAD SIZE 1/2 IN.-20 RH, WASHER OUTSIDE DIAMETER 1 1/2 IN, MAXIMUM WHEEL WIDTH 2 IN, SETSCREW TYPE SOCKET, SHAFT ROTATION COUNTER CLOCKWISE, OVERALL LENGTH 4 1/16 IN, TYPE EXTRA LONG, APPLICATION MOUNTING VARIOUS BUFFING AND FINISHING WHEELS ON ELECTRIC MOT