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page 8
Fig. 9
NOTE: If a center pin and guide plate are not available, use a tem-
plate or notched board to start the hole (Fig. 8).
5. After drilling to about the depth of the core bit teeth, remove the
center pin and guide plate from the core bit. Resume drilling
6. To change the core bit, hold the tool upwards, pointing it away from
your body as shown, and run it briefly in forward to loosen the core
bit from the adapter (Fig. 9).
NOTE: To make deeper holes, remove the core bit, break and remove
the core. Resume drilling.
Fig. 8