Abraboro cylindrical HSS metal drill bit, 2.5 mm diameter, supplied as a pack of 10. Made from high-speed steel, these twist drill bits are designed for cutting precise small-diameter holes in a variety of ferrous and non-ferrous metals and typical metal alloys. The cylindrical shank fits standard chucks of hand drills and drill presses, enabling controlled drilling for metalworking, fabrication, repair and maintenance tasks where accuracy and repeatability are required.
Advantages
High-speed steel construction provides a balance of hardness and toughness suitable for general-purpose metal drilling. The 2.5 mm diameter is ideal for pilot holes, fastening work and precision tasks that require small, clean holes. Supplied in a pack of ten, the set ensures multiple replacements during a project and helps maintain consistent hole quality across repetitive operations. The cylindrical shank and standard twist geometry allow straightforward chucking and reliable chip evacuation in common metalworking conditions.
Suitable for
- Drilling small-diameter holes in steel, stainless steel, aluminum and non-ferrous alloys
- Pilot holes for tapping and fastening
- Precision metal fabrication and model-making
- Maintenance, repair and assembly work in workshops and production environments
Key specifications
- Material: high-speed steel (HSS)
- Drill type: twist drill with cylindrical shank
- Nominal diameter: 2.5 mm
- Shank style: smooth cylindrical shank for standard chucks
- Pack quantity: 10 pieces
How to use
Secure the drill bit in the drill chuck so it is centered and tightened. Select appropriate spindle speed for the material being drilled—lower speeds for harder steels, higher speeds for softer alloys—and apply steady, moderate feed pressure. Use cutting fluid or lubricant when drilling harder metals to reduce heat and prolong the life of the bit. Withdraw the bit periodically for chip clearance and allow the bit to cool if necessary. For tapping, start with a clean pilot hole and proceed with the recommended tapping sequence for the chosen material.
Usage recommendations
Wear appropriate eye protection and follow workshop safety practices. Match drill speed and lubrication to the workpiece material, and replace worn bits to maintain hole quality. Store the pack in a dry place to prevent corrosion and handle the small-diameter bits carefully to avoid bending or breakage.
