Drill bit set GRAPHITE cobalt for metal cylindrical 2 mm, 10 pcs

Set of 10 GRAPHITE cobalt cylindrical drill bits for metal with a 2 mm diameter, designed for drilling steel and other ferrous materials. These small-diameter bits combine cobalt-enhanced hardness and improved heat resistance to maintain cutting performance during demanding metalworking operations. The cylindrical shank ensures compatibility with standard drill chucks and hand-held drills, making the set suitable for workshop, maintenance and precision metal fabrication tasks.

Advantages

Cobalt alloy construction increases wear resistance and retains hardness at elevated cutting temperatures, allowing longer life and more consistent hole quality when drilling hardened steels and other tough metals. The 2 mm diameter provides accuracy for pilot holes, small fasteners and precision work, while the cylindrical shank simplifies mounting in most chucks. Supplied as a set of 10, the collection ensures spares for repeated use or replacement during projects.

Suitable for

• Drilling small-diameter holes in steel and other ferrous metals
• Pilot holes for tapping or fastening
• Maintenance and repair work in workshops and industrial environments
• Precision metalworking and model-making where 2 mm holes are required

Key specifications

• Material: cobalt-enhanced high-speed steel (for improved heat resistance)
• Diameter: 2 mm
• Shank type: cylindrical
• Quantity: 10 pieces per set
• Intended application: drilling ferrous metals, including steel

How to use

Select the 2 mm drill bit and secure it in the drill chuck, ensuring the shank is seated and tightened to prevent slippage. Use appropriate cutting speed and steady feed for metal drilling—generally lower speeds for harder steels—and apply cutting fluid or coolant to reduce heat buildup and extend tool life. Start with a steady, controlled feed to establish the hole, then continue with consistent pressure until the hole is complete. Inspect bits regularly for wear and replace when the cutting edge is dull or chipped.

Usage recommendations

For best results when drilling hardened or thick steel, use recommended coolant or cutting oil, moderate drilling speed, and firm but controlled feed. Store bits in a dry, protected case to prevent damage and corrosion; keep spare bits available to avoid interruptions during precision tasks.