Makita D-09787 HSS-G Metal Drill Bit 8.0 x 117 mm

The Makita D-09787 HSS-G metal drill bit is a precision-engineered tool designed for high-performance drilling in various metal materials. With a diameter of 8.0 mm and a total length of 117 mm, this drill bit is manufactured from high-speed steel, ensuring excellent heat resistance and durability during intensive use. Its robust construction allows for consistent, clean, and accurate holes, making it a reliable choice for both professional metalworking environments and demanding DIY tasks.

Advantages

The primary advantage of this drill bit lies in its HSS-G composition, which provides superior hardness and sharpness compared to standard bits. The precision-ground geometry ensures that the bit centers effectively upon contact, reducing walking and increasing drilling speed. Its durable design maintains sharpness over extended periods, minimizing the need for frequent replacements and ensuring high-quality results in every application.

Suitable for

• Drilling into steel and iron
• Non-ferrous metal applications
• General metal fabrication tasks
• Professional workshop repairs
• Home improvement and DIY metal projects

When it may not be suitable

This drill bit is specifically optimized for metal and may not be suitable for drilling into masonry, concrete, or extremely hard materials like hardened steel or ceramics. Using this bit on inappropriate surfaces may cause premature dulling or damage to the cutting edges.

Key specifications

• Diameter: 8.0 mm
• Total length: 117 mm
• Material: High-Speed Steel (HSS-G)
• Shank type: Cylindrical
• Tip geometry: Chisel edge

How to use

To achieve the best results, secure your workpiece firmly to prevent vibration. Align the drill bit perpendicular to the surface and apply steady, moderate pressure while maintaining a consistent drilling speed. It is recommended to use a cutting oil or lubricant when drilling into metal to reduce friction, dissipate heat, and extend the lifespan of the drill bit. Always ensure the drill bit is properly tightened in the chuck before starting the tool.

What to consider before purchase

• Verify the chuck capacity of your drill to ensure it accommodates an 8.0 mm shank.
• Check the material compatibility for your specific project requirements.
• Consider purchasing a set if you require multiple hole sizes for your work.

Usage recommendations

For optimal performance and longevity, always operate the drill at the recommended speed for the specific metal type and use a cooling lubricant to prevent overheating the bit.