Bosch Cyl-9 Spiral cutting drill bit

The Bosch Cyl-9 spiral cutting drill bit is designed for efficient and reliable drilling across a wide variety of construction materials. As part of the Bosch EXPERT line, this tool ensures high precision and versatility for both professional contractors and DIY enthusiasts. Featuring Bosch Centering Geometry and a specially designed centring tip, it allows for accurate hole starting without slipping. The high-performance carbide tip, manufactured by fine grinding, provides extended durability, while the optimised dust extraction channel ensures fast and efficient debris removal during operation.

Advantages

This multi-construction drill bit eliminates the need to constantly switch bits when working with mixed materials on a job site. Its robust construction and engineered geometry deliver consistent performance, reducing wear and tear over extended use. The cylindrical shank ensures secure compatibility with standard three-jaw drill chucks, providing stable and vibration-reduced drilling. Users benefit from accurate positioning, clean entry holes, and reliable execution across diverse surfaces.

Suitable for

• Precision drilling in multiple materials
• Professional construction and renovation tasks
• DIY projects requiring versatility
• Drilling through ceramic, concrete, plastic, softwood, and steel

When it may not be suitable

This drill bit is not intended for heavy-duty industrial core drilling or continuous high-impact demolition work. It may also struggle when used on extremely hard, reinforced concrete containing thick structural rebar.

Key specifications

• Drill bit type: Spiral cutting drill bit
• Rotating direction: Right-hand rotation
• Shank type: Cylindrical shank
• Diameter: 5 mm
• Working and total length: 150 mm
• Compatible materials: Ceramic, concrete, plastic, softwood, steel
• Quantity: 1 piece

How to use

Insert the cylindrical shank securely into a standard three-jaw drill chuck and tighten evenly. Ensure the drill is set to right-hand rotation mode. Position the centring tip directly onto the desired spot on the material surface without applying excessive initial pressure. Start drilling at a moderate speed, allowing the centring geometry to guide the bit cleanly into the material. Maintain a steady feed rate and clear dust periodically if necessary to ensure optimal drilling performance.

What to consider before purchase

• Verify that a 5 mm diameter matches your project requirements
• Check that your drill is equipped with a compatible three-jaw chuck
• Ensure the target materials fall within the supported list of ceramic, concrete, plastic, softwood, and steel

Usage recommendations

For best results and maximum lifespan of the Bosch Cyl-9 drill bit, use appropriate drilling speeds for the specific material being processed and avoid lateral pressure during operation.