- 1). Unplug an electric drill from the power source or remove the battery pack from a battery-powered drill.
- 2). Open the chuck of the drill so that the hole saw pilot drill can be inserted. Hand-tighten or use a chuck key to secure the pilot drill is held firmly in place.
- 3). Slide the hole saw onto the pilot drill. Secure the saw by sliding or latching the saw in place, depending on the manufacturer.
- 4). Connect the power supply to the drill and slowly start the drill, checking that the pilot drill and saw are straight and securely attached.
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