• 6-piece set: includes 3 step drill bits (4-12 mm, 4-20 mm, 4-32 mm) and 3 twist drill bits. • High-quality material: made of high-speed steel (HSS 4241) with titanium coating to reduce friction and heat. • Efficient design: hexagonal shank compatible with standard electric drills and X-shaped design for precise positioning and smooth chip removal. • Versatility: suitable for drilling into materials such as steel, brass, wood, plastic, aluminum, and PVC. • Durability: laser-etched sizes on the metal for clear identification and greater wear resistance.