1. For stainless steel drilling, please choose wear-resistant or cobalt containing type. For speed control, please check the tachometer.

2. Before using the electric drill, slow down the speed. The larger the diameter, the slower the speed, with a speed of ≥ 800r/min.

3. For continuous processing, please use full cooling assistance throughout the process. For each step exceeding 10S, please check the method.