Dormer Pramet A940 2.60 mm HSS-E HIGH PERF MULT-APP STRAIGHT SHANK LONG SERIES DRILL DIN/ANSI

The Dormer Pramet A940 2.60 mm HSS-E High Perf Multi-App Straight Shank Long Series Drill (DIN/ANSI) is built for precision micro-drilling across a range of metals. At just 2.60 mm in diameter, this drill delivers reliable entry, clean holes, and repeatable results in tight tolerances.

• 130-degree point for self-centering action and reduced push force, helping you start holes with minimal wandering and maximum accuracy.
• Bright finished edge to minimize material cling on the cutting edge, promoting smoother starts and steadier hole diameters.
• Parabolic flute design engineered to evacuate chips efficiently, enabling deeper holes in a single pass without deflection or chatter.
• Premium HSS-E material (high-speed steel with enhanced edge toughness) suitable for drilling steel, aluminum, and stainless steel, delivering consistent results across common workshop materials.
• Long series with straight shank for extended reach in deep-hole tasks while maintaining rigid, repeatable performance in standard drill chucks (DIN/ANSI compatibility).
• High-speed, high-accuracy performance achieving tight h10 hole tolerance, ensuring components assemble with predictable fits and reliable performance in production or repair work.

Why this drill stands out

Unlike generic micro-drills, the A940 combines a precisely engineered point geometry with a parabolic flute profile to maintain cutting efficiency at higher speeds and feeds. The result is cleaner holes with fewer re-drills, reduced tool wear, and longer tool life in demanding drilling operations.

Use cases and ideal applications

Perfect for micro-machining tasks in mechanical assemblies, electronics housings, precision fixtures, and light to moderate industrial fabrication. It excels when you need accurate, centered holes in thin-walled parts or when drilling through multiple materials in a single setup.

Practical tips for best results

• Match the cutting speed to the material: higher speeds for aluminum, controlled feeds for steel to preserve edge life.
• Use appropriate cutting fluid or coolant to reduce heat buildup and extend tool life on metals with higher hardness.
• Secure the workpiece firmly and use a pilot entry to maximize the self-centering benefits of the 130-degree point.
• Inspect hole tolerances with calibrated gauges to ensure consistent fits in sensitive assemblies.