Bosch PRO Metal HSS-G Spiral Drill Bit 12 mm

The Bosch PRO Metal HSS-G spiral drill bit with a 12 mm diameter is a high-performance accessory engineered for precision and reliability in metalworking tasks. Manufactured from high-speed steel, this drill bit is ground to ensure sharp cutting edges and consistent performance, allowing for accurate hole creation in various metallic materials. Its robust construction provides the necessary stability for demanding professional applications, while the geometry of the bit facilitates efficient chip removal to prevent overheating and clogging during operation.

Advantages

This drill bit offers exceptional durability and wear resistance, which is essential for maintaining precision over extended periods of use. The HSS-G design ensures a high level of cutting speed and accuracy, reducing the effort required for drilling through tough materials. Its specialized geometry promotes smooth operation and clean hole finishes, minimizing the need for secondary deburring or cleaning processes. The high-quality material composition ensures that the tool retains its sharpness even under significant mechanical stress, providing a long service life for both professional tradespeople and serious DIY enthusiasts.

Suitable for

• Drilling into alloyed and non-alloyed steel
• Working with cast iron
• Processing non-ferrous metals such as aluminum or copper
• Creating precise holes for fasteners or structural components

When it may not be suitable

This drill bit is not intended for use on masonry, concrete, or hardened stone materials, as these surfaces will cause rapid dulling and potential damage to the cutting edges. It is also not recommended for drilling into wood or soft plastics where specialized drill geometries are required for optimal chip clearance.

Key specifications

• Diameter: 12 mm
• Material: High-speed steel (HSS-G)
• Working length: 101 mm
• Total length: 151 mm
• Design: Spiral flute for efficient chip removal

How to use

To achieve the best results, secure the workpiece firmly in a vice or clamp to prevent movement during the drilling process. Insert the drill bit into the chuck of your power drill or drill press, ensuring it is tightened securely. Start the drill at a moderate speed and apply consistent, steady pressure. It is recommended to use a cutting oil or lubricant when drilling into metal to reduce friction, dissipate heat, and extend the life of the drill bit. Always maintain a perpendicular angle to the surface to ensure a clean and accurate hole.

What to consider before purchase

• Verify that your drill chuck supports a 12 mm shank diameter.
• Ensure the drill bit length is sufficient for the thickness of the material you intend to drill.
• Check that your power tool has the appropriate torque and speed settings for metal drilling.

Usage recommendations

Always wear appropriate eye protection and safety gear when drilling metal. Periodically clear metal shavings from the hole to prevent overheating and maintain cutting efficiency.