Dormer Pramet A110 15/64 Inch HSS ST STRAIGHT SHANK LONG SERIES DRILL DIN 340

Dormer Pramet A110 15/64 Inch HSS ST Straight Shank Long Series Drill DIN 340 is a purpose-built drilling solution designed for depth, precision, and durability across metalworking tasks. Built around a robust HSS core and a geometry optimized for tough materials, this drill delivers consistent holes with less effort and re-grinding downtime.

Key features that elevate your drilling results

• 118-degree conventional point: A strong, self-centering point that starts quickly and is easy to re-grind, helping you achieve accurate hole starts with minimal wandering.
• Steam oxide finish: A smooth, low-friction coating that reduces built-up material on the cutting edge, promoting cleaner cuts and longer edge life.
• Long length series: Specifically designed for deeper holes and applications where reach matters, letting you drill where standard bits can’t without needing extensions.
• Premium HSS material: High-speed steel delivers reliable performance across a range of metals, including steel, aluminum, and stainless steel, with strong wear resistance.
• Straight shank (DIN 340): A secure, versatile shank compatible with a wide array of chucks and setups, from handheld drills to stationary machines.
• DIN 340 compliance: Ensures interchangeability and consistent sizing for reliable performance in professional environments.

What makes this drill ideal for real-world work

• The long-series design is a game-changer for projects that require holes beyond the reach of standard bits — think enclosed housings, chassis components, or mounting brackets where access is limited.
• Whether you’re drilling into steel, aluminum, or stainless steel, the A110 delivers predictable chip formation and steady cutting action, reducing snags and chatter.
• This drill performs confidently in a drill press, milling setup, or handheld drilling rigs, making it a flexible choice for workshops with varied workflows.
• The 118-degree point maintains its effectiveness between sessions, letting you refresh the edge without sacrificing alignment or hole quality.

Practical use cases and best practices

• Deep-hole tasks in automotive components, steel brackets, or fabrication work where a standard drill can’t reach.
• Precise pilot entry in stainless steel panels, followed by steady feed to maintain clean edges and minimize work-hardening effects.
• Aluminum ducting, frames, or housings where a sharp, fast-cutting bit reduces tool wear and heat buildup.
• Shop environments that require reliable, one-bit versatility for both handheld tasks and machine-driven drilling.

Care and tips for maximum life

• Use appropriate cutting fluid or coolant when drilling steel or stainless steel to manage heat and extend edge life.
• Maintain a steady, even feed to avoid deflection, especially when working with longer bits in tighter tolerances.
• Keep the point sharp and re-sharpen as needed to preserve hole quality and reduce exit burrs.

Who should consider the Dormer Pramet A110 drill?

Ideal for professional machinists, metal fabricators, and serious hobbyists who routinely drill deep holes in a variety of metals. If you need a single, reliable long-reach HSS drill that performs consistently across materials and setups, this DIN 340 long-series bit is a strong fit.