The Irwin IRW10502500 HSS Pro Drill Bit Set of 19 is a professional-grade kit designed for precision drilling across a wide range of materials. Each bit in this comprehensive set is manufactured from high-speed steel to ensure long-lasting performance and durability. Covering diameters from 1mm to 10mm, the selection provides versatility for detailed work and heavy-duty tasks alike. Whether you’re working with metal, plastic, or wood, the expertly ground cutting edges and robust construction deliver clean holes, reduced wear, and consistent results. Housed in a sturdy case for convenient storage and organization, this set is ideal for workshop, on-site, or DIY use.