Makita D-09678 HSS-G Metal Drill Bit 2.50 x 57 mm

The Makita D-09678 HSS-G metal drill bit is a precision-engineered tool designed for high-performance drilling in various metal materials. With a diameter of 2.50 mm and a total length of 57 mm, this drill bit is crafted from high-speed steel, ensuring excellent heat resistance and structural integrity during demanding drilling operations. Its ground flute design facilitates efficient chip evacuation, which helps maintain drilling speed and prolongs the life of the cutting edge.

Advantages

This drill bit offers exceptional durability and precision due to its HSS-G construction, which provides a sharper cutting edge compared to standard rolled bits. The geometry of the bit is optimized for stability, reducing the risk of wandering when starting a hole on hard surfaces. Its professional-grade build quality ensures consistent performance, making it a reliable choice for users who require clean and accurate holes in metal workpieces.

Suitable for

• Drilling holes in mild steel and non-ferrous metals
• Precision metalworking and fabrication tasks
• Maintenance and repair work in construction
• General workshop drilling applications

When it may not be suitable

This drill bit is not intended for drilling into hardened steel, masonry, concrete, or wood, as these materials require specialized drill bits with different cutting geometries and material compositions. Using this bit on inappropriate surfaces may lead to premature dulling or breakage.

Key specifications

• Diameter: 2.50 mm
• Total length: 57 mm
• Material: HSS-G (High-Speed Steel, ground)
• Compatibility: Standard power drills and drill presses

How to use

To achieve the best results, secure your workpiece firmly to prevent vibration or movement. Mark the center point of the hole clearly before starting. Insert the drill bit into the chuck of your power drill or drill press and tighten it securely. Apply steady, moderate pressure while maintaining a consistent drilling speed. It is recommended to use a cutting fluid or oil when drilling into metal to reduce friction, dissipate heat, and improve the quality of the hole finish.

What to consider before purchase

• Ensure the 2.50 mm diameter matches your specific project requirements
• Verify that your drill chuck can accommodate the shank size
• Consider purchasing multiple bits if working on abrasive materials

Usage recommendations

Always wear appropriate eye protection when drilling metal. Periodically clear metal shavings from the hole to prevent overheating and ensure the bit remains sharp for longer periods.