Using your Wera Kraftform Driver & Bit Set is easy. For tight spots, retract the two - position telescopic blade into the handle. To use it as a full - sized screwdriver, just push the clamping sleeve to extend the bayonet blade. If you want to use it with a power tool, remove the bayonet blade and attach it as a bit holder. When inserting or removing bits, use the one - handed operation with the Rapidaptor's quick - release chuck. To access the stored bits, press the button on the integrated bit storage. As for maintenance, keep the tool clean after each use. Wipe off any dirt or debris. Avoid using excessive force that could damage the blade or bits. Store the tool in a dry place to prevent rust. And don't forget to keep the canvas belt pouch in good condition for easy carrying.