Dormer Pramet A110 15.00 mm HSS ST STRAIGHT SHANK LONG SERIES DRILL DIN 340

The Dormer Pramet A110 15.00 mm HSS ST Straight Shank Long Series Drill is engineered to reach where standard drills can’t. Built to DIN 340 specifications with a 118° point, this long-series drill delivers dependable performance in deep holes and hard-to-reach sections, making it a reliable choice for both hand-held and machine drilling applications.

Key features that matter in real-world work

• 118-degree conventional point provides a strong, self-centering tip that’s easy to re-grind when sharpening is needed, helping you keep cutting costs down over time.
• Steam oxide (steam tempered) finish minimizes built-up material on the cutting edge, reducing sticking and improving chip evacuation for cleaner holes and less downtime between feeds.
• Long length series with straight shank designed for extended reach to drill deeper holes while maintaining compatibility with standard chucks in both hand-held and machine setups.
• Premium HSS material handles drilling across a wide range of materials—steel, aluminum, and stainless steel—with reliable wear resistance and long tool life.
• DIN 340 conformity ensures the drill’s geometry and dimensions align with industry-standard specifications, providing consistent performance across tools and machines.
• 6xD drilling capability (deep holes) the long-series design is optimized for deep bores, offering practical reach without compromising rigidity or accuracy.
• Diameter 15.00 mm a precise, robust option for larger-bore applications, supported by Dormer Pramet’s long-series design and DIN 340 standards.

Whether you’re fabricating machinery housings, automotive frames, or structural steel components, this drill’s geometry and coating work together to reduce chatter, extend tool life, and produce consistently clean holes. The straight shank keeps the bit aligned in the chuck, while the long flute length helps chip clearance in deeper holes—minimizing the risk of stalling or deflection during aggressive drilling tasks.

Ideal use scenarios

• Deep-hole drilling in steel and aluminum where standard-length drills fall short. The long-series geometry provides the reach you need without sacrificing rigidity.
• Machine-driven bore operations in production or prototyping environments, where repeatability and consistent hole quality are critical.
• Hand-held drilling tasks in fabrication shops or on-site workshops, thanks to a straight shank that fits common chucks and adaptors.

Practical tips to maximize performance with the A110 15.00 mm drill:

• Use a light to medium feed and steady pecking cycles to reduce heat buildup, especially when starting holes in harder steels. The 118° point is designed for strength and re-sharpening ease, so dress the edge as needed to maintain sharpness.
• Apply appropriate cutting fluid or coolant to improve tool life and achieve smoother chip evacuation through the long flutes.
• Inspect the drill before long reaches—ensure the straight shank is clean and free of burrs to preserve concentricity in deep-hole operations.

Image provided by the brand to reflect the Dormer Pramet family of long-series drills.