Meet the Dormer Pramet A978 3.50 mm HSS-E High Performance Multi-Application Straight Shank Extra Long Series drill DIN 1869. This compact, precision drill is purpose-built for deep-hole tasks while delivering dependable performance across a range of metals. Sold as a practical three-pack, it’s the go-to choice for workshops that value consistency, reach, and reliability in every hole.

• 130° point for self-centering — reduces walk-off and lowers the push force required to start drilling, helping you achieve clean, accurate holes from the first cut.
• Bright finish — minimizes workpiece material sticking to the cutting edge, promoting smoother entry and reduced chip buildup during long runs.
• Parabolic flute design — engineered to handle extra-deep holes in a single pass, improving chip removal and extending drill life in dense materials.
• Premium HSS-E material — delivers robust performance across a variety of metals, including steel, aluminium, and stainless steel, with reliable edge retention.
• Extra-long length — designed for applications that demand increased reach, enabling deep drilling without repositioning or multiple steps.
• Straight shank for universal compatibility — works seamlessly with standard chucks and collets, ensuring solid grip and stable cutting.
• DIN 1869 compliant — aligned with widely used industry standards for predictable performance and interchangeability.

Designed for professional use, this 3-piece set is ideal for machinists, metal fabricators, and maintenance teams tackling deep-hole drilling in steel, aluminum, and stainless steel. Whether you’re fabricating precision components, hollowing out passages, or creating through-holes in hard-to-reach workpieces, the A978 delivers consistent hole quality with less setup time and fewer passes.

Compared to standard-length, multi-app drills, the A978’s extra-long geometry and optimized flute geometry minimize chatter and maximize material removal efficiency on challenging jobs. You’ll notice cleaner entrances, smoother evacuation of chips, and extended tool life, even when drilling through tough alloys or workpieces with limited accessibility.

What you get: a reliable three-pack of 3.50 mm diameter drills in the high-performance HSS-E family, ready for a range of multi-application uses. The drills are compatible with common drilling machines and setups, making them a practical addition to any metalworking toolbox.