Makita D-09690 HSS-G Metal Drill Bit 3.50 x 70 mm

The Makita D-09690 HSS-G metal drill bit is a professional-grade tool engineered for precision and reliability when working with metal surfaces. With a diameter of 3.50 mm and a total length of 70 mm, this drill bit is manufactured from high-speed steel, ensuring excellent heat resistance and durability during demanding drilling operations. Its design facilitates efficient chip removal, which helps maintain consistent performance and prevents overheating during extended use.

Advantages

This drill bit offers superior cutting performance due to its high-quality HSS-G construction, which provides a sharp, durable edge capable of maintaining precision over time. The inclusion of a chisel edge design allows for easier centering and reduced walking on the workpiece surface, ensuring accurate hole placement. Its robust build quality minimizes the risk of breakage, making it a dependable choice for both industrial environments and home workshops.

Suitable for

• Drilling holes in various types of metal
• Industrial metalworking projects
• DIY home repair and construction tasks
• Precision drilling requiring accurate hole diameters

When it may not be suitable

This drill bit is specifically optimized for metal surfaces and may not provide optimal results when used on masonry, concrete, or extremely hard materials like hardened steel or ceramics. It is also not intended for use in impact drilling modes.

Key specifications

• Material: High-Speed Steel (HSS-G)
• Diameter: 3.50 mm
• Total length: 70 mm
• Shank type: Cylindrical
• Compatibility: Standard driver drills

How to use

To use the Makita D-09690, ensure the drill bit is securely fastened into the chuck of your drill. Mark the desired drilling location clearly on the metal surface. It is recommended to use a center punch to create a small indentation, which helps guide the drill bit and prevents it from slipping. Apply steady, moderate pressure while drilling at a controlled speed to allow the bit to cut effectively without overheating. Using a cutting lubricant can further extend the life of the bit and improve the finish of the hole.

What to consider before purchase

• Verify the required hole diameter for your specific project
• Ensure your drill chuck is compatible with a cylindrical shank
• Consider purchasing a cutting fluid to improve performance on thicker metals

Usage recommendations

For the best results and to maximize the lifespan of your drill bit, always maintain a consistent drilling speed and avoid applying excessive lateral pressure. Regularly clear metal chips from the hole during deep drilling to prevent clogging and heat buildup.