Changing the Tool (see figure B)

Wear protective gloves when changing tools. The drill chuck may heat up significantly when it is used for long periods.

Open the keyed chuck (1) by turning it until the tool can be inserted.

Insert the tool.

Insert the drill chuck key (6) into the corresponding holes of the keyed chuck (1) and clamp the tool evenly.

Screwdriving tools (see figure C)

You should always use a universal bit holder (9) when using screwdriver bits (8). Only use screwdriver bits that fit the screw head.