1/4″ Quick-Change Tapered Spindle are used for fitting buffs and wheels to drills.
How to use:
Step 1: Fit tapered spindle to drill chuck and tighten.
Step 2: Carefully screw the buff onto the tapered spindle with the thickest flange inwards. Screw on as far as buff will reasonably fit.
Step 3: Turn on drill and the buff will tighten further against the tapered spindle.
Step 4: Apply compound as per instructions.