Irwin HSS Jobber Drill Bit 16.5mm

The Irwin HSS Jobber Drill Bit 16.5mm is a high-performance cutting tool engineered for precision drilling in metal and a variety of industrial materials. Manufactured from high-speed steel, this drill bit is designed to withstand the rigors of demanding applications while maintaining its structural integrity and sharpness. Its standard cylindrical shank ensures compatibility with a wide range of standard drill chucks, making it a versatile addition to any professional workshop or industrial toolkit.

Advantages

This drill bit offers exceptional durability and heat resistance, which are critical for maintaining performance during extended drilling sessions. The high-speed steel construction provides a superior balance between hardness and toughness, reducing the risk of breakage under pressure. Furthermore, the geometry of the bit is optimized for efficient chip removal, which prevents clogging and ensures a smooth, clean hole finish in various metal types. Its consistent manufacturing quality guarantees reliable results for repetitive tasks.

Suitable for

• Drilling into mild steel and cast iron
• General metalworking and fabrication
• Construction and maintenance projects
• Creating precise holes for fasteners or structural components

When it may not be suitable

This drill bit is not intended for drilling into hardened steel, masonry, or concrete, as these materials require specialized carbide-tipped bits. Using this tool on materials significantly harder than its design specifications may lead to rapid dulling or catastrophic failure of the cutting edge.

Key specifications

• Diameter: 16.5mm
• Material: High-speed steel (HSS)
• Shank type: Cylindrical
• Application: Metal drilling

How to use

To achieve the best results, ensure the drill bit is securely tightened in the chuck of your drill. Mark the center of the hole to be drilled using a center punch to prevent the bit from wandering during the initial contact. Apply steady, moderate pressure while maintaining a consistent drilling speed appropriate for the material being worked. It is recommended to use a suitable cutting oil or lubricant to reduce friction and heat buildup, which will significantly extend the lifespan of the drill bit.

What to consider before purchase

• Verify that your drill chuck capacity can accommodate a 16.5mm shank diameter
• Ensure the drill speed settings are appropriate for the material hardness
• Consider the need for a pilot hole when drilling into thicker metal plates

Usage recommendations

Always wear appropriate eye protection and safety gear when operating drilling equipment. Regularly inspect the drill bit for signs of wear or damage and sharpen or replace it as necessary to maintain drilling efficiency and safety.