GRAZTAI Drill Bit 7.0 x 290 mm

The GRAZTAI drill bit, with a diameter of 7.0 mm and a total length of 290 mm, is a professional-grade tool engineered for precision and reliability in demanding drilling tasks. Constructed from high-quality steel, this drill bit is designed to maintain its structural integrity and cutting efficiency over extended periods of use. Its extended length makes it an ideal choice for deep-hole drilling applications where standard bits fall short, ensuring consistent performance across various construction and renovation projects.

Advantages

This drill bit offers exceptional durability due to its robust steel construction, which resists wear and deformation during intensive operation. The precise 7.0 mm diameter ensures accurate hole sizing, reducing the need for rework and improving the overall quality of your work. Its 290 mm length provides the necessary reach for drilling through thicker materials or deep structures, making it a versatile addition to any professional or home workshop toolkit.

Suitable for

• Deep-hole drilling in construction and renovation
• Installation of long fasteners or anchors
• General drilling tasks requiring extended reach
• DIY projects involving wood, metal, or masonry

When it may not be suitable

This drill bit may not be suitable for drilling into extremely hardened materials or specialized alloys that require carbide-tipped or diamond-coated bits. Additionally, the 290 mm length might be cumbersome to use in confined spaces where a shorter bit would provide better control and stability.

Key specifications

• Diameter: 7.0 mm
• Total length: 290 mm
• Material: Steel

How to use

To use the GRAZTAI drill bit, securely insert the shank into the chuck of your power drill or drill press, ensuring it is tightened properly to prevent slippage. Mark the desired drilling location clearly before starting. Begin drilling at a low speed to establish the hole, then gradually increase the speed while maintaining steady, even pressure. It is important to keep the drill bit perpendicular to the surface to ensure a straight hole and prevent the bit from bending or breaking.

What to consider before purchase

• Verify that your drill chuck is compatible with the bit shank size
• Ensure the 290 mm length is appropriate for your specific project depth
• Check if the material you are drilling is compatible with standard steel drill bits

Usage recommendations

For optimal results and to extend the lifespan of the drill bit, use a cutting lubricant when drilling into metal and clear the debris from the hole frequently. Always wear appropriate eye protection and ensure the workpiece is firmly clamped before starting the drilling process.