Irwin HSS Metal Drill Bit, 7.4mm, Cylindrical Shank

The Irwin HSS metal drill bit, with a diameter of 7.4mm, is a high-performance tool engineered for precision drilling in a wide range of metal materials. Constructed from durable high-speed steel, this drill bit is designed to withstand the rigors of frequent use while maintaining its cutting edge. The standard cylindrical shank allows for universal compatibility with most standard drill chucks, making it a versatile addition to any workshop or toolbox.

Advantages

This drill bit offers exceptional durability and heat resistance, which are critical when working with tough metal surfaces. The high-speed steel composition ensures that the bit remains sharp for longer periods, reducing the need for frequent replacements. Its geometry is optimized for efficient chip removal, which prevents clogging and ensures a smooth, clean hole finish every time. The precise 7.4mm diameter provides accuracy for tasks requiring specific hole sizes, ensuring a professional result in both industrial and home improvement applications.

Suitable for

• Drilling into steel and iron
• Working with various metal alloys
• Professional metalworking projects
• DIY home repair and fabrication

When it may not be suitable

This drill bit is specifically optimized for metal applications and may experience premature wear if used on masonry, concrete, or extremely hard ceramic materials. It is not intended for use with impact drivers that lack a compatible chuck system.

Key specifications

• Diameter: 7.4mm
• Material: High-speed steel (HSS)
• Shank type: Cylindrical
• Application: Metal drilling

How to use

To use the Irwin HSS drill bit, ensure it is securely tightened into the chuck of your power drill or drill press. Mark the center of the hole you intend to drill using a center punch to prevent the bit from wandering. Apply steady, moderate pressure while maintaining a consistent speed appropriate for the metal being drilled. Using a cutting fluid or lubricant is recommended to reduce friction and heat, which will extend the lifespan of the drill bit and improve the quality of the hole.

What to consider before purchase

• Verify that your drill chuck supports a 7.4mm cylindrical shank.
• Ensure the drill bit diameter matches your specific project requirements.
• Consider purchasing a set of bits if you require multiple sizes for your work.

Usage recommendations

Always wear appropriate eye protection when drilling metal to protect against flying chips and debris. Maintain a steady drilling speed and avoid excessive force to prevent the bit from overheating or breaking.