GRAZTAI 3x190 mm Metal Drill Bit

The GRAZTAI 3x190 mm metal drill bit is a precision-engineered tool designed for reliable performance when working with various metal surfaces. Measuring 3 mm in diameter and 190 mm in total length, this drill bit provides the necessary reach and stability for deep-hole drilling tasks. Crafted from high-quality steel, it is built to withstand the rigors of regular use while maintaining its cutting edge for efficient material removal.

Advantages

This drill bit stands out due to its extended length, which allows for drilling through thicker materials or reaching into recessed areas where standard bits fail. The robust steel construction ensures high resistance to heat and wear, promoting a longer service life even under demanding conditions. Its precise geometry facilitates clean entry and consistent drilling speed, reducing the risk of bit wandering and ensuring accurate hole placement in metal workpieces.

Suitable for

• Drilling deep holes in steel and non-ferrous metals
• Professional metalworking and fabrication projects
• DIY home improvement and repair tasks
• Installation work requiring extended reach

When it may not be suitable

This drill bit is not intended for use on masonry, concrete, or extremely hard materials like hardened tool steel, as these may cause rapid dulling or breakage. Due to its thin 3 mm diameter, it is susceptible to bending if excessive lateral pressure is applied, making it unsuitable for heavy-duty prying or high-torque applications.

Key specifications

• Diameter: 3 mm
• Total length: 190 mm
• Material: Steel

How to use

To achieve the best results, secure your workpiece firmly in a vice or clamp to prevent movement during the drilling process. Start by marking the center point of the hole with a center punch to guide the drill bit tip. Apply steady, moderate pressure and use a low to medium drilling speed, ensuring the bit remains perpendicular to the surface. It is recommended to use a cutting fluid or oil to lubricate the bit, which helps dissipate heat and extends the life of the tool.

What to consider before purchase

• Verify that your drill chuck is compatible with a 3 mm shank diameter
• Ensure the 190 mm length is appropriate for your specific project depth
• Check if your power tool supports the recommended speed for small-diameter metal drilling

Usage recommendations

Always wear appropriate eye protection and ensure the drill bit is sharp before starting your work. If the bit becomes hot during operation, pause to allow it to cool down to prevent tempering the steel.