Meet the Dormer Pramet A110 12.10 mm HSS ST Straight Shank Long Series Drill DIN 340 — a purpose-built solution for deeper, cleaner holes with dependable performance in a wide range of materials. Designed for professional workshops and demanding applications, this drill pairs a robust cutting geometry with a long reach to tackle holes that standard bits simply can’t reach.

Key features that matter in real-world drilling

• 118-degree conventional point — a strong, easy-to-sharpen tip that starts holes precisely and minimizes wandering, helping you achieve accurate pilot entry and straight bores from the first cut.
• Steam oxide finish — a surface treatment that reduces material sticking to the cutting edge, promoting smoother chip flow and longer edge life in a variety of workpiece materials.
• Long length series — extended reach for deep holes and harder-to-reach work areas, reducing the need for extensions or secondary setups.
• Premium HSS material — reliable performance across a broad spectrum of metals, including steel, aluminium, and stainless steel, with good wear resistance and toughness.
• Versatile application — compatible with both handheld drills and machine tools, making it a flexible choice for fabrication shops, maintenance departments, and DIY enthusiasts working on metal, alloy, or composite pieces.

Practical use cases

• Drilling deep holes in thick steel plates where standard-length bits fall short.
• Precision pilot holes in aluminum components that demand clean entry and minimal burrs.
• Machining stainless steel parts where edge retention and chip evacuation are critical for productivity.
• Hand-held drilling on-site or in a workshop setup where a single, reliable bit covers multiple materials.

Why choose this drill over alternatives?

The combination of a true DIN 340 specification, a long-reach geometry, and a refined HSS core makes the Dormer Pramet A110 a dependable workhorse for depth-focused projects. Its 118° point reduces wandering during start-up, while the steam oxide finish minimizes material buildup on the edge, enabling smoother drilling cycles and less downtime for edge maintenance. For operators who need one drill bit that delivers depth, versatility, and consistent results across ferrous and non-ferrous metals, this A110 long-series drill is a standout choice.

Specifications at a glance

• Diameter: 12.10 mm
• Shank: Straight
• Series: Long length
• Material: Premium High-Speed Steel (HSS)
• Point geometry: 118 degrees conventional
• Finish: Steam oxide
• DIN standard: 340