The 50mm To 500mm Long Series HSS Parabolic Drills are high-speed, rigid drills made from stainless steel. These drills are available in sizes ranging from 0.60mm to 9.00mm and are polished for better durability. They are designed to be used in drill machines and operated manually. The parabolic shape of the drills allows for efficient chip removal and reduces the risk of clogging or jamming. The rigid hardness of the drills ensures precision drilling with minimal deviation. These drills are ideal for use in various applications, including metalworking, woodworking, and plastic fabrication. They are also suitable for drilling holes in hard-to-reach areas due to their longer length. If youre looking for high-quality, durable drills that deliver consistent results, the 50mm To 500mm Long Series HSS Parabolic Drills are an excellent choice.