Replacement feed cork for the clutch on Marvel 8, 8 Mark 1 and 8 Mark II bandsaws. Price is per cork. 6 corks are required for this clutch. Feed clutch corks should be replaced when they are no longer visible, or when saturated with oils and no longer create friction. New corks should increase blade life by equalizing feed pressure during the cut, giving a more consistent chip load and better cut time.