Dormer Pramet A940 2.40 mm HSS-E HIGH PERF MULT-APP STRAIGHT SHANK LONG SERIES DRILL DIN/ANSI

Meet the Dormer Pramet A9402.4, a precision 2.40 mm HSS‑E long‑series drill designed to master deep‑hole work with minimal setup. Built to DIN/ANSI standards, this PFX drill combines a 130° point, a bright finish, and a parabolic flute to deliver consistently clean, accurate holes at high speeds and feeds—even in challenging multi‑material applications.

• 130° point for self‑centering and reduced push force. The angled point helps your drill start true on the first attempt, minimizing wandering and easing entry into the workpiece.
• Bright finish to prevent sticking. A polished cutting edge reduces material adhesion, helping maintain hole quality and lengthen tool life in stainless steel and other tougher alloys.
• Parabolic flute design for deep holes in one pass. The parabolic web creates ample chip space and efficient evacuation, enabling drilling deep holes up to 10×D without pecking in steel, stainless steel, and other alloys.
• Premium HSS‑E material (cobalt‑based). Engineered for durability and wear resistance, this drill handles steel, aluminium, and stainless steel with high reliability.
• Long series, straight shank for versatile compatibility. 95 mm overall length with a 62 mm flute length, designed to DIN/ANSI specifications for consistent seating and performance.
• High‑performance, high‑precision hole tolerances. Engineered for high speeds and feeds with tight hole control (H10 tolerance) to achieve accurate, repeatable results.

Who should reach for the A9402.4? machinists, toolmakers, and engineers tackling fine‑dia workpieces and metal components where depth, precision, and efficiency matter. It’s ideal for drilling through steel, stainless steel, and other alloys where a reliable, self‑centering entry and clean chip removal are critical to meeting tight production timelines.

Practical guidance for optimal results:

• Use appropriate speeds and feeds tailored to the workpiece material to leverage the drill’s high‑speed capability without overheating the edge.
• Employ steady, perpendicular motion to maximize the 130° point’s self‑centering advantage and preserve hole concentricity.
• Rely on the parabolic flute to evacuate chips efficiently, reducing the risk of built‑up heat and premature wear on long hole applications.
• Inspect the bright finish’s edge regularly; a clean edge minimizes sticking and helps maintain consistent hole quality across multiple holes.