Dormer Pramet A110 5.10 mm HSS ST STRAIGHT SHANK LONG SERIES DRILL DIN 340

Introducing the Dormer Pramet A110 5.10 mm HSS ST STRAIGHT SHANK LONG SERIES DRILL DIN 340—a purpose-built drill bit designed for precision, reach, and dependable performance across a range of metals. Built for serious fabrication work and everyday shop use, this long-series drill delivers consistent results from first entry to deep hole completion.

Performance you can trust

• 118° conventional point—creates a strong, self-centering tip that starts cleanly and resists wandering. The geometry is designed for easy re-grinding, so you can refresh the edge and extend the tool’s life between changes.
• Steam oxide finish—reduces friction at the cutting edge, helping to prevent material from sticking to the flute and enabling smoother chip evacuation during longer drilling passes.
• Long length series—the extended flute length provides increased reach for deep holes and applications where access is limited, without sacrificing rigidity in typical drilling depth ranges.
• Premium HSS material—high-speed steel offers reliable performance on a variety of workpiece materials including steel, aluminium, and stainless steel, delivering steady cutting action and durable edge retention.
• Straight shank—designed for compatibility with a wide range of hand-held drills and machine chucks, ensuring consistent grip and minimal run-out across different setups.
• Versatile product—suitable for both manual drilling and machine-driven operations, making it a reliable choice for workshops, maintenance teams, and engineering projects.

Ideal for professionals and discerning hobbyists alike, the Dormer Pramet A110 drill excels in automotive, fabrication, and general metalworking tasks where deeper holes are required without compromising accuracy on tougher materials. The DIN 340 standard ensures dependable interchangeability with compatible tools and fixtures, so you can rely on consistent performance across your equipment.

Practical tips for best results: start with a light pilot hole if threading depth is substantial, use a slow to moderate feed rate to control heat buildup, and apply light cutting fluid to extend bit life during extended drilling sessions. When re-sharpening, maintain the 118° point angle to preserve the bit’s self-centering capability and cutting efficiency.