To drill stainless steel material the right way, start using a sharp drill and drill slowly. You should apply more pressure on the bits. Smaller buts can be hard to work with because they break or bend. Apply pressure on drill bits that are ¼-inches or larger than that. If you get a continuous spiral pattern, then this is an indication you are applying enough pressure. Lubricate your drill bits to prevent friction when drilling. It would help if you also were careful because the bits can snap off when working on metal.