Spiral drill

Spiral drills, also known as twist drills or helical drills, are cutting tools designed for creating cylindrical holes in solid materials. These tools feature a helical flute geometry that efficiently evacuates chips during drilling operations. Spiral drills are characterized by their point angle (typically 118° or 135°), helix angle, and shank type (cylindrical, hexagonal, or SDS). They are available in various diameters, lengths, and coatings (such as TiN, TiAlN, or black oxide) to suit different workpiece materials like steel, stainless steel, aluminum, or wood. The drill body is made from high-speed steel (HSS), cobalt HSS, or carbide for enhanced durability and performance.

Spiral drills are widely used in industrial manufacturing, metalworking, construction, and woodworking sectors. They are essential for machining operations in CNC machines, drill presses, hand drills, and automated production lines. Common applications include drilling holes for fasteners, assembly, electrical conduit routing, and mechanical component fabrication. These tools are also critical in maintenance and repair tasks across automotive, aerospace, and general engineering workshops.

Our inventory includes subcategories such as HSS spiral drills (e.g., DIN 338, DIN 340), cobalt spiral drills (e.g., DIN 338 Co5), carbide-tipped spiral drills, and masonry spiral drills with carbide tips. Key article codes follow standard designations like 20783-001 for HSS straight shank drills, 20783-002 for cobalt drills, and 20783-003 for carbide drills. The coding typically reflects diameter, length, and material type, e.g., 20783-001-10 for a 10mm HSS drill.

We offer express worldwide shipping and dedicated engineering support for spiral drill selection, including advice on coatings, geometries, and cutting parameters. Our technical team provides documentation on feed rates, speeds, and tool life optimization, ensuring you get the right tool for your application.