Broca Black & Gold 4 mm

General description High-quality HSS-G metal drill bit with a 4mm diameter, designed for precise and efficient drilling in metal surfaces. The durable black and gold oxide coating protects against corrosion and wear, while the hexagonal shank ensures a secure grip and optimal power transfer during use. Suitable for use with percussion drills and screwdrivers, it provides reliable performance for DIY and home improvement projects. Technical specifications Tip Diameter: 4.0mm Overall Length: 80mm Working Length: 31.5mm Tip Angle: 135° Material: HSS-G (High-Speed Steel - Ground) Shank Type: Hexagonal (¼ inch) Pack Quantity: 1 Installation Insert the hex shank into the drill chuck, ensuring a secure fit. Use appropriate safety gear before drilling. Set the drill to the desired speed and apply steady pressure during operation. Usage Ideal for drilling in metal surfaces such as steel, aluminum, and other alloys. Use with percussion drills or screwdrivers for best results. Apply steady,