Dormer Pramet A940 2.70 mm HSS-E HIGH PERF MULT-APP STRAIGHT SHANK LONG SERIES DRILL DIN/ANSI

Meet the Dormer Pramet A940 2.70 mm HSS-E – a high‑performance, multi‑application drill engineered to deliver clean starts, deep holes, and precise finishes across a broad range of metals. This long‑series drill with a straight shank is designed to integrate seamlessly with standard tool holders and delivers dependable results from light aluminum work to robust steel machining, all while adhering to DIN/ANSI standards for effortless interchangeability.

Why the A940 stands out

• 130° point for confident starts – The geometry is optimized for self‑centering, reducing push force and minimizing wandering at the outset of each hole, so you get accurate debuts every time.
• Bright finish for smooth cutting – The enhanced surface finish helps prevent workpiece material from sticking to the cutting edge, promoting cleaner holes and longer tool life.
• Parabolic flute design for deeper holes – The unique flute profile excels in evacuating chips quickly, enabling extra‑deep drilling in a single pass without sacrificing hole quality.
• Premium HSS‑E material – Built for durability, this drill maintains performance across steel, aluminium, and stainless steel, even at elevated speeds and feeds.
• High‑precision, high‑speed performance – Engineered to produce consistent, high‑quality holes with tight tolerances (H10 range) while maintaining stability at demanding speeds and feeds.
• Long series, straight shank – The extended reach and straight shank design ensure compatibility with a wide range of collets and holders, providing rigidity and straightness in deep holes.
• DIN/ANSI compliant – Interchangeability with standard tooling reduces setup time and maximizes compatibility across machines and tooling catalogs.

The A940 isn’t just about drilling a hole—it’s about delivering repeatable results across diverse materials and applications. Whether you’re fabricating automotive components, assembling precision machinery, or performing fast, accurate production drilling, this drill keeps pace with your workflow.

Ideal use cases

• Precision drilling in steel, stainless steel, and aluminum components where hole quality and tolerance matter.
• Deep hole drilling in multi‑pass environments where chip evacuation and straightness are critical.
• Multi‑material projects that require a single drill to perform reliably across different alloys without changing tooling.
• Tooling and fixture fabrication where DIN/ANSI compatibility and consistent performance reduce downtime.

Operational tips for optimal results (based on the A940’s design strengths): maintain appropriate speeds and feeds for the material, use proper lubrication or coolant as needed, and ensure the workpiece is well clamped to minimize vibration. Start with a clean, centered hole to leverage the 130° point and take advantage of the parabolic flute’s chip‑evacuation to maintain steady cutting force throughout the job.

Specifications at a glance

• Diameter: 2.70 mm
• Material: HSS‑E high‑speed steel
• Point geometry: 130 degrees
• Flute design: parabolic for deep holes in a single pass
• Shank type: straight, long series
• Standards: DIN/ANSI compatible
• Tolerance capability: high‑quality holes with tight H10 accuracy