The SELECTOR HSS-WIDIA-WOOD drill bits are made of HSS-R high-speed steel, a material characterised by a hardness ranging from 750 to 820 HV, ensuring good wear resistance during machining. Specifically designed for metal drilling, with particular effectiveness on steel, these drill bits offer reliable performance and precision in cutting. The use of cooling emulsions is compatible, promoting cooling and lubrication during operation and helping to extend the tool's lifespan. The geometry and construction are optimised for professional applications in the construction and metalworking sectors, targeting experienced operators who require robust and high-performance tools for metal machining.