Key Features

• Premium HSS Construction - High-speed steel delivers excellent hardness and toughness for superior wear resistance.
• Black Oxide Finish - Enhances lubricity, retains coolant at the cutting edge, and improves chip flow.
• Round Shank Design - Compatible with a wide range of collets, chucks, and tool holders.
• Spiral Flute - Right-hand cut efficiently evacuates chips upward to prevent clogging.
• Extra Long Reach - Ideal for hard-to-access areas and deep drilling operations.

Technical Specifications

Ideal Applications

This extra-long drill bit excels in general-purpose drilling where extended reach is essential. It performs reliably across a broad range of materials, particularly in the iron and steel families, making it perfect for:

• Production and maintenance work
• Drilling through thick plates or long components
• Applications requiring deep hole penetration
• Metalworking in steel, cast iron, and similar ferrous materials

Usage Tips

To maximize performance and tool life:

1. Use Proper Speed & Feed: Reduce RPM for larger diameters and apply steady, moderate feed pressure.
2. Apply Cutting Fluid: Use coolant or cutting oil on ferrous materials to extend bit life and improve finish.
3. Peck Drilling Recommended: For deep holes, periodically withdraw the bit to clear chips and prevent binding.
4. Secure Workpiece: Ensure material is firmly clamped to avoid vibration and wandering.
5. Check Runout: Use a high-quality drill chuck to minimize runout and ensure straight holes.

Why Choose Drill America DWDDL Series?

Trusted by professionals for consistent performance, this extra-long HSS drill bit combines durability, precision, and versatility. The black oxide treatment reduces friction while the robust HSS construction handles demanding applications without premature wear. Whether you're in a shop or on a job site, this bit delivers reliable results every time.