Baildon DIN 340 RN NWKb Metal Drill Bit 9 mm, HSS (S)

The Baildon DIN 340 RN NWKb metal drill bit is a professional-grade cutting tool engineered for precision and reliability when working with metal. Manufactured from high-speed steel (HSS), this 9 mm drill bit is specifically designed to meet the DIN 340 standard, which defines its extended length. This geometry allows for deeper hole drilling compared to standard jobber-length bits, providing enhanced reach for demanding industrial and workshop tasks.

Advantages

The primary advantage of this drill bit is its extended length, which facilitates drilling through thicker materials or reaching recessed areas that shorter bits cannot access. The high-speed steel construction ensures excellent heat resistance and durability, maintaining a sharp cutting edge even during prolonged use. The design promotes efficient chip evacuation, which reduces the risk of clogging and overheating, thereby extending the tool's lifespan and improving the quality of the finished hole.

Suitable for

• Deep hole drilling in steel and metal alloys
• Industrial manufacturing and assembly lines
• Precision metalworking in professional workshops
• Drilling through thick metal plates or profiles

When it may not be suitable

This drill bit is not recommended for use on extremely hard materials like hardened steel or ceramics, as the standard HSS composition may wear out prematurely. Additionally, due to its extended length, it may be prone to bending or snapping if used with handheld drills without proper guidance or if excessive lateral pressure is applied.

Key specifications

• Diameter: 9 mm
• Material: High-speed steel (HSS)
• Standard: DIN 340
• Type: RN (Normal spiral)
• Application: Metal drilling

How to use

To achieve the best results, secure the workpiece firmly in a vice or clamp to prevent movement. Start the drilling process at a low speed to create a pilot indentation, then gradually increase the speed while maintaining steady, consistent pressure. It is essential to use a suitable cutting oil or lubricant to minimize friction and heat buildup, which helps preserve the integrity of the drill bit and the workpiece. Always ensure the drill bit is perfectly aligned with the drilling axis to avoid deflection.

What to consider before purchase

• Verify that your drill chuck capacity supports a 9 mm shank diameter
• Ensure your equipment is capable of handling the extended length of this bit
• Assess the hardness of the material you intend to drill
• Consider using a drill guide if working with handheld power tools

Usage recommendations

For optimal performance and longevity, always clear metal chips frequently during the drilling process and avoid applying excessive force, which can cause the bit to overheat or break.