Dormer Pramet A940 2.80 mm HSS-E HIGH PERF MULT-APP STRAIGHT SHANK LONG SERIES DRILL DIN/ANSI

Meet the Dormer Pramet A940 2.80 mm HSS-E HIGH PERF MULT-APP STRAIGHT SHANK LONG SERIES DRILL DIN/ANSI — a precision-made micro drill crafted for reliability across a range of materials and applications. This 2.80 mm diameter drill is engineered for engineers and machinists who demand tight tolerances, clean holes, and repeatable results in everyday production as well as specialty tasks.

Why this drill stands out

• 130° point for effortless starts — the precise 130-degree point enhances self-centering, reducing wandering and the push force required to begin cutting. The result is quicker position setup and fewer rework passes.
• Bright finish for smoother chip evacuation — the bright coating minimizes material sticking to the cutting edge, helping to prevent built-up edge and ensuring a cleaner entry and exit during drilling.
• Parabolic flute design for deep-hole capability — the specially contoured parabolic flutes promote efficient chip removal, enabling you to drill extra deep holes in a single pass without sacrificing hole quality or breakthrough integrity.
• Premium HSS-E for versatile material reach — manufactured from high-speed steel with extra carbide and toughness, this drill maneuvers through steel, aluminum, and stainless steel with dependable performance and reduced wear over time.
• High-performance, high-accuracy results — designed to maintain alignment and diameter control at higher speeds and feeds, delivering consistent hole sizes within h10 tolerance for demanding components and assemblies.
• Long-series, straight-shank, DIN/ANSI compatibility — the extended reach and straight shank work smoothly in standard chucks and holders, making it a practical choice for deep pockets, blind holes, and multi-stage drilling tasks in everyday workshops and production lines.

Ideal use scenarios

• Small-diameter precision holes in automotive, electronics, or mechanical components where tight tolerances are critical.
• Deep-hole features in thin-winish workpieces or assemblies where an extended reach reduces setup time and vial repositioning.
• General-purpose drilling across mixed-material projects, from steel frames to aluminum housings and stainless fasteners.
• Production runs requiring consistent hole geometry at elevated speeds and feeds, minimizing tool changes and improving throughput.

How this drill helps you beat common challenges

• Start accuracy and reduced chatter with the 130° point, especially on hard-to-center materials or glossy surfaces.
• Chip management is easier thanks to the bright finish and parabolic flutes, lowering the risk of built-up edge and improving surface finish on the hole walls.
• One-pass deep-hole capability translates to fewer tool changes, less handling, and faster cycle times in production environments.
• HSS-E construction delivers a balance of hardness, toughness, and wear resistance, extending tool life when drilling mixed-metal workpieces.

Practical tips for best results

• Match speeds and feeds to workpiece material and tool geometry; start at conservative speeds for new materials and increase gradually while monitoring finish and wear.
• Use appropriate cutting fluids or coolants to protect the edge and improve chip evacuation on tougher materials like stainless steel.
• Ensure proper workholding and alignment — even with self-centering points, a stable setup minimizes deflection and improves hole concentricity.
• Inspect the flute geometry and edge condition after long runs; replace the drill if the edge shows rounding or chipping to protect hole accuracy.

This drill is designed for professionals who need dependable performance in a compact, DIN/ANSI-compatible package. The A940 line is known for consistent hole quality across a range of common materials, making it a trusted choice for tool cabinets, machine shops, and fabrication floors where precision drilling matters most.