If you like to take care of every detail in your home and own the latest products that will make your life easier, purchase Hollow drill bit RUKO 31 mm 19 mm 55 mm High speed steel (HSS) Weldon at the best price. The hollow drill bit from RUKO is a high-performance tool designed for professional use in metalworking and construction, especially engineered to handle demanding drilling tasks in stainless steel, high-strength steels, non-ferrous metals, and light materials. Made from high-speed steel (HSS), this drill bit delivers outstanding durability and cutting efficiency in industrial environments, maintaining its edge even during intensive applications. It features a 31 mm diameter and a 55 mm cutting depth, enabling precise drilling in beams, sheets, and thick metal components. Its 19 mm shank ensures optimal compatibility with magnetic base pillar drills and upright drills equipped with Morse Taper connections, especially when using the recommended 108 302 / 108 303 adapters and with machines such as the RUKO RS 20 and RS 30 drills. CBN grinding guarantees a uniform finish and high precision, while the design is optimized to provide strong cutting power and extend tool life, reducing downtime for re-sharpening. It comes in a translucent plastic case with a hanger, making storage and quick visual identification easy in workshops and professional settings. Overall, this RUKO hollow drill bit combines quality materials and advanced technical specifications, positioning itself as a reliable solution for demanding drilling in steel and other metals. Material: High speed steel (HSS)Stainless steelType of anchor: WeldonType: Hollow drill bitApprox. dimensions: 55 mmNumber of Teeth: 8Approx. diameter: 31 mm19 mm