Introducing the Dormer Pramet A940 6.90 mm HSS-E High Performance Multi-Application Straight Shank Long Series Drill (DIN/ANSI). Engineered for precision and reliability, this drill is purpose-built to handle a broad range of materials and drilling challenges with a single, dependable tool.

Key features that translate to real-world results

• 130° point for self-centering — starts holes cleanly with minimal wandering and reduced push force, especially on tough or uneven surfaces.
• Bright finish — helps prevent workpiece material from sticking to the cutting edge, enabling smoother cuts and easier chip flow.
• Parabolic flute design — optimized chip evacuation and rigidity allow extra-deep holes in a single pass, boosting productivity and reducing tool wear.
• Premium HSS-E material — cobalt-enhanced high-speed steel delivers superior heat resistance and edge retention when drilling steel, aluminum, and stainless steel.
• Long series straight shank — compatible with standard chucks and collets while providing extended reach for deeper or recessed holes.
• H10 hole tolerance — engineered to deliver high-quality, accurate holes at practical speeds and feeds, supporting tight fits and consistent downstream processing.

Why this drill stands out in multi-material work

When your shop handles a mix of steels, stainless steels, and non-ferrous metals, the A940 excels due to its balanced combination of 130° centering geometry, heat-tolerant HSS-E construction, and a flute profile designed for deep drilling. It’s the practical choice for production floors, job shops, and maintenance facilities where tooling needs to perform consistently across materials without swapping bits.

Ideal use cases and practical tips

• Automotive components, structural fabrication, and general engineering projects benefit from reliable hole quality and repeatable results.
• Use appropriate lubrication or coolant to manage heat, especially when drilling stainless steel or alloyed materials.
• Begin at moderate speeds to take advantage of the self-centering point; as depth increases, monitor the feed to maintain stable cutting conditions.
• For long, through-holes or deep cavities, trust the long-series straight shank to maintain concentricity and reduce deflection.

In daily manufacturing and precision machining, the Dormer Pramet A940 6.90 mm HSS-E High Performance Multi-Application Straight Shank Long Series Drill (DIN/ANSI) delivers dependable hole quality, cleaner starting action, and robust performance across common drilling applications. It’s the one drill you can reach for when you need consistent results—from simple through-holes to challenging deep features.