Step 5: Using the Tool
Next, press the screw driver from the other side of the wheel into the slot in the bolt head. Tap the back of the screw driver lightly with a hammer, and then harder to drive the bearing out.
Repeat for the other bearings.
DISCLAIMER: THIS WILL DESTROY THE BEARINGS. NEVER APPLY FORCE TO THE INNER BEARING RACE WHEN TRYING TO SEAT THE OUTER BEARING RACE OR VICE VERSA. THIS DESTROYS BEARINGS. DO NOT USE THIS TOOL TO INSTALL NEW BEARINGS.
Destroying the old bearings doesn't matter as the whole reason to remove bearings is to replace them.