Using the Bosch BPT14F18 pipe tap is straightforward. First, make sure you've selected the right size for your project - the laser - etched marking on the tap will help you with that. Then, align the tap with the hole where you want to cut the internal threads. Start turning the tap slowly and steadily, and the three - to five - thread chamfer will help you get a good start, even in tough materials. As you're cutting, the precise flute design will help clear the chips quickly. When it comes to maintenance, since it's made of rust - and tarnish - resistant heat - treated carbon steel, it's quite durable. But it's still a good idea to clean it after each use. You can use a clean cloth to wipe off any debris. Store it in a dry place to prevent any potential damage. And always remember, this tap is great for both metal and plastic drilling, but make sure to adjust your cutting speed according to the material you're working with.