Using your Wera 334 slotted flat - head screwdriver is easy. First, find the right screw that matches the size of your screwdriver tip. Then, place the tip firmly into the slot of the screw. For quick turning, use the smooth hard zones on the screwdriver. When you need more force, grip the soft zones for better torque. Remember, this screwdriver is color - coded according to its profile and size, so it's easy to pick the right one for the job. When using it, make sure the tip is well - seated in the screw head to avoid slipping and damaging the screw or the surface around it. As for maintenance, after each use, wipe the screwdriver clean with a dry cloth. Keep it in a dry place to prevent rusting. If you notice the tip getting dull over time, it might be time to replace the screwdriver for optimal performance. And don't forget, if you buy 3 or more Wera tools, you can get a 10% discount at checkout, so consider building your Wera tool set!