Dormer Pramet A110 6.60 mm HSS ST STRAIGHT SHANK LONG SERIES DRILL DIN 340

The Dormer Pramet A110 6.60 mm HSS ST Straight Shank Long Series Drill (DIN 340) is a purpose-built solution for professionals who expect dependable performance in metalworking. Designed for deep hole drilling and extended reach, this drill delivers consistent hole quality from the first cut to the last.

• 118-degree conventional point: A strong, self-centering tip that starts cleanly and resists wandering. It’s also easy to re-grind, helping you extend tool life without sacrificing accuracy.
• Steam oxide finish: A smooth, low-friction coating that minimizes material adhesion at the cutting edge, reducing built-up edge and improving chip evacuation for steady drilling.
• Long length series: Specifically engineered for deep holes and applications where additional reach matters, so you can access recessed features and hard-to-reach work areas with a single tool.
• Premium HSS material: High-speed steel capable of drilling through a wide range of materials, including steel, aluminium, and stainless steel, while maintaining strength and edge life.
• Straight shank DIN 340: A reliable, universal shank interface that fits a broad spectrum of chucks and collets in both handheld and machine setups.

Who benefits most from this drill? shop floor machinists, maintenance technicians, and fabrication professionals who routinely tackle deep-hole work or tasks requiring extended reach without swapping tools. The A110’s robust construction and versatile material compatibility mean fewer tool changes, improved workflow, and predictable results across materials like structural steel, aluminium extrusions, and stainless components.

Practical use scenarios

• Deep-pocket drilling in automotive chassis components where access is limited by surrounding geometry.
• Hole drilling in steel frames and brackets where a single, long drill minimizes setup time.
• Prototyping and fabrication tasks that require consistent hole quality across different metals.

Tips for best results:

• Use proper lubrication or cutting fluid to manage heat, especially on stainless steel and harder alloys.
• Start with a pilot hole if material is particularly tough to reduce load on the drill and preserve edge life.
• Maintain stable workholding and support to prevent deflection in deep-hole applications.
• Inspect the point and re-grind as needed to preserve cutting geometry and performance over time.

The Dormer Pramet A110 6.60 mm HSS Straight Shank Long Series Drill is built to deliver dependable depth, solid hole quality, and long-term reliability in everyday metalworking tasks. When you need a single drill that can handle deep holes and a variety of materials with consistent results, this long-series tool stands up to the challenge.