GRAZTAI Double-End Drill Bit 3.2 x 49 mm

The GRAZTAI double-end drill bit, measuring 3.2 mm in diameter and 49 mm in length, is a professional-grade cutting tool engineered for precision drilling in metal and various other materials. Featuring a robust steel construction, this drill bit is designed to withstand the rigors of intensive use while maintaining structural integrity. The dual-ended configuration significantly enhances operational efficiency, as it allows users to quickly flip the bit to the fresh cutting edge once one side becomes dull, effectively doubling the service life of the tool.

Advantages

The primary benefit of this double-ended drill bit is its exceptional durability and cost-effectiveness. By providing two functional cutting ends on a single shaft, it minimizes downtime during projects, as there is no immediate need to switch to a new bit when the first tip wears down. The precise 3.2 mm diameter ensures clean, accurate hole formation, which is essential for professional assembly and fabrication tasks. Its compact 49 mm length provides excellent stability and control, reducing the risk of bit deflection or breakage during operation.

Suitable for

• Automotive repair and bodywork
• Industrial metal fabrication
• General workshop maintenance
• Drilling pilot holes in steel and non-ferrous metals

This drill bit may not be suitable for drilling into hardened masonry, concrete, or extremely thick materials where a longer reach or specialized carbide-tipped masonry bits are required. It is also not intended for use with materials that require specific cooling or lubrication systems not available in standard handheld drilling setups.

Key specifications

• Diameter: 3.2 mm
• Total length: 49 mm
• Material: Steel
• Design: Double-ended

To use the GRAZTAI drill bit, ensure it is securely fastened in the chuck of your power drill or drill press. Align the tip with the center punch mark on your workpiece to ensure accuracy. Apply steady, moderate pressure while maintaining a consistent drilling speed appropriate for the material being processed. Once the first end shows signs of wear or dullness, simply remove the bit, reverse it, and secure the unused end in the chuck to continue working.

What to consider before purchase

• Verify that your drill chuck is compatible with a 3.2 mm shank diameter.
• Ensure the 49 mm length is sufficient for the depth of your intended application.
• Confirm the material compatibility matches your specific project requirements.

Usage recommendations

For optimal performance and to extend the life of the cutting edges, always use a suitable cutting oil when drilling into metal and maintain a consistent feed rate to prevent overheating.