Using your Wera 354 5mm x 80mm Hex Screw Driver is a piece of cake. First, use the color - coding on the handle base to make sure you've got the right size for the job. Once you've chosen the correct tool, hold the multi - component Kraftform handle firmly. It's designed to give you a comfortable grip and good torque transfer. Place the tip of the screwdriver into the hex bolt head. Thanks to the Hex - Plus technology, it'll fit well and reduce the risk of slippage. Now, turn the screwdriver to tighten or loosen the bolt. When you're done, you can put the tool down on an angled surface without worrying about it rolling away because of the hexagonal anti - roll feature. As for maintenance, keep it clean. After use, wipe it with a dry cloth. The Wera Black Point tip has good corrosion protection, but it's still a good idea to store it in a dry place. If you notice any damage to the tip or handle, stop using the tool and contact the supplier. Enjoy working with your high - quality Wera screwdriver!