The bi-metal hole saw with a diameter of 55 mm is a versatile tool that is ideal for various materials, including metal, aluminum, plastic, drywall, and wood. With a recommended speed of 100 to 155 RPM, it allows for precise and clean cuts. The teeth of the hole saw are made from high-quality HSS (High-Speed Steel), which enhances its durability and efficiency. This hole saw is particularly useful for craft projects and professional applications where high cutting quality is required. Weighing only 25 grams, it is also easy to handle and transport. The bi-metal construction ensures high resilience and a long lifespan, making it a valuable addition to any toolbox.