HOW TO INSTALL REPLACEMENT BITS The Quick-Fit Bit™ Holder slides down onto the grinder shaft. The Quick-Fit Bit® Grinding Sleeve must position to the bottom stop ring of the holder (extreme end of holder nearest to grinder reservoir floor). With the locking lever down, the perimeter of the Quick Fit Bit® Holder expands, locking the bit and holder into place. HEIGHT ADJUSTMENT To achieve full utilization of your grinding bit ensure that the sleeve is positioned at the BOTTOM stop ring of the holder (extreme end of the holder nearest to grinder reservoir floor). To adjust, flip the orange lever UP on the Quick-Fit Bit™ Holder. Slide HOLDER up to position desired. Lock in place by flipping the orange lever DOWN. DO NOT ADJUST SLEEVE ON HOLDER. THIS WILL CAUSE SLEEVE TO SLIDE UP HOLDER. Sleeve must remain at BOTTOM stop ring of the holder to operate properly.