PRELIMINARY SPECIFICATIONS GARDNER SURFACE GRINDER MODEL 618 S/N: 804-4 6" X 18" MAGNETIC CHUCK WALKER MAGNETIC CHUCK CONTROL JUST CAME OUT OF RUNNING SERVICE, AVAIALBLE FOR INSPECTION! Subject To Verification; Subject To Prior Sale & Price Change!.
Chuck bungs are primarily used to block the centre of the chuck to stop swarf and coolant going down the spindle. The threaded hole which can be used for the removal of the bung can also be used for mounting a back stop.