Dormer Pramet A940 2.50 mm HSS-E HIGH PERF MULT-APP STRAIGHT SHANK LONG SERIES DRILL DIN/ANSI

Dormer Pramet A940 2.50 mm HSS-E High-Performance Multi-Application Straight Shank Long Series Drill (DIN/ANSI) is built for precision work across a wide range of materials. This compact yet capable drill delivers consistent hole quality, especially in hard-to-reach depths, thanks to its optimized geometry and robust HSS-E construction.

The 130-degree point design is engineered to self-center the drill as soon as it touches the workpiece, reducing wandering and the push force required. That means cleaner starts, faster hole advancement, and less chance of snatch or walk-off on delicate or small-diameter workpieces.

The bright finish plays a practical role in everyday machining: it minimizes workpiece material from sticking to the cutting edge, helping chips break away cleanly and reducing the need for frequent deburring. Combined with a premium HSS-E matrix, this drill maintains sharpness and heat resistance even under demanding speeds and feeds.

Parabolic flute design is a standout feature for deep-hole applications. It channels chips away efficiently, enabling longer, uninterrupted drilling passes. In a single, steady pass, you can achieve deeper holes with excellent straightness and minimal exit burrs—ideal for long fixtures, enclosures, or multi-layer assemblies.

As a long-series, straight-shank drill, the A940 is purpose-built for versatility. It maintains rigidity on CNC and manual machines alike, delivering reliable performance in DIN/ANSI tooling environments. The HSS-E construction provides strike resilience and broad material compatibility, including steel, aluminum, and stainless steel, making this drill a true all-rounder for shops that handle mixed-material parts.

Key benefits in real-world use

• Self-centering start with a 130-degree point reduces drift and improves first-hole accuracy on small diameters.
• Chip evacuation and depth capability enabled by the parabolic flute design supports extra-deep holes in a single pass.
• Bright finish for cleaner cuts minimizes material buildup at the cutting edge, extending tool life and reducing post-processing work.
• HSS-E composition offers enhanced red-hardness and wear resistance for steel, aluminium, and stainless steel drilling.
• DIN/ANSI compatibility with a straight shank ensures solid seating and repeatable results on compatible machines.
• High-precision results capable of producing clean, accurate holes with h10 tolerance at appropriate speeds and feeds.

Who should consider the Dormer Pramet A940? It’s a practical choice for machine shops, fabricators, and workshop environments where small-diameter holes must be drilled quickly, accurately, and in deep profiles. It’s perfect for electrical enclosures, automotive prototypes, and precision fixtures where consistent hole quality across multiple materials matters most.

The A940’s performance makes it a reliable upgrade over standard HSS drills when you’re tackling mixed-material projects or precision drilling tasks that demand straightness, depth, and clean exits. Use it on machines that allow full shank engagement and follow manufacturer guidance for speed and feed to maximize the drill’s advantages.