1EA MILWAUKEE 06-88-0110 THUMB WING SCREW WITH 45-88-5247 HUB WASHER AND 06-97-4050 TENSION WASHER AND NYLON RETAINER.

USED ON THE HANDLE HUB 43-78-0265 SHAFT 45-08-0160 TO KEEP THE FEED HANDLE ON THE TOOL. REMOVE TO ROTATE HANDLE FROM SIDE TO SIDE.

I DON'T KNOW IF THE NYLON RETAINER WAS EVER A FACTORY OPTION BUT IT IS A GENIUS LITTLE ADDITION TO KEEP THE ASSEMBLY TOGETHER.