Power tool maker Ryobi launched the first affordable portable benchtop planer, the AP10. The company has brought a number of other products within reach of the do-it-yourself enthusiast. The BT3000 was the first affordable, precision woodcutting system, and the 18v Super Combo was the first cheap cordless power tool system in which a number of tools shared the same battery, including the drill. In addition to the low initial purchase price, Ryobi tools have extensive consumer-serviceable maintenance features, which helps keep ownership costs low. One of these features is the easily removable chuck in its drills.

Step 1

Lock the drill's trigger switch. Place the selector that changes the direction of rotation in the center position. The switch is adjacent to the trigger.

Step 2

Insert the 5/16" hex key into the chuck and tighten the jaws. Get them as tight as possible.

Step 3

Tap the hex key with the mallet in a clockwise direction. Tap the hex key quite sharply. The screw inside the chuck will loosen.

Step 4

Open the chuck jaws and take out the hex key. Use the screwdriver to unscrew the screw. It has left-hand threads and unscrews in a clockwise direction.

Step 5

Put the hex key back into the chuck and tighten the jaws again. Tap the hex key with the mallet—this time in a counter-clockwise direction. The chuck will loosen.

Step 6

Unscrew the chuck by hand.