Juego de 3 brocas escalonadas de acero rápido (HSS) con revestimiento de titanio, vástago hexagonal de 1/4", cono de acero de alta velocidad de cambio rápido para perforar agujeros en plástico y mader

Material: HSS with titanium coating. Robust and durable.

Easy drilling: Dual flute design for smoother cutting. The high pitch design allows you to feel the stop and prevents accidentally drilling larger holes.

Widely used: Step drill bits are perfect for drilling holes in various materials: up to 3 mm (iron plate, copper plate, aluminum plate); up to 5 mm (wood, PVC sheets, insulation panels). Not suitable for hard and brittle materials such as stainless steel, glass, tiles, walls, etc.

Contents: 3 HSS step drill bits for grooving (4-12 mm, 5-20 mm, 5-30 mm) and a storage bag. The 6.35 mm hex drives fit all types of household electric drills.