This 10-piece set of 4 mm 4341 HSS drill bits is built for precision and durability in applications like metalworking, woodworking, plastic fabrication, and non-ferrous alloys. Made from high-grade 4341 high-speed steel and precisely ground, each bit features a sharp cutting edge and efficient spiral flutes. The set is packaged in a sturdy plastic box for secure storage and convenient portability.
Key Features
Diameter: 4 mm — ideal for medium, accurate drilling tasks
Material: 4341 high-speed steel (HSS) for excellent hardness and toughness