Dormer Pramet A940 3.30 mm HSS-E HIGH PERF MULT-APP STRAIGHT SHANK LONG SERIES DRILL DIN/ANSI

When you need a drill that performs consistently across a range of materials, the Dormer Pramet A940 3.30 mm HSS-E High-Performance Multi-Application Straight Shank Long Series Drill (DIN/ANSI) is designed to deliver clean, accurate holes with confidence. This single drill covers steel, stainless steel, and aluminum, making it a go-to tool for multi-material manufacturing environments.

• 130-degree point for self-centering and lower push force: The geometry minimizes wandering at entry, producing true holes from the first cut and reducing operator effort.
• Bright finish reduces sticking and built-up edge: A bright, smooth surface helps chips release more easily and keeps cutting edges sharp longer.
• Parabolic flute design for deep-hole capability: The specialized flute geometry shaves material efficiently and enables drilling extra deep holes in a single pass, cutting cycle time and improving hole consistency.
• Premium HSS-E material for versatile performance: HSS-E (cobalt-enriched) offers higher heat resistance, extended tool life, and reliable performance when drilling tough materials such as steel and stainless steel, with good results on aluminum as well.
• High-performance drilling with tight tolerances: Capable of producing high-quality, accurate holes even at higher speeds and feeds, achieving H10 hole tolerance for reliable fit and finish.
• Long-series, straight-shank design for compatibility and reach: The straight shank works with a wide range of chucks and collets, while the long-series length supports deeper drilling tasks without compromising rigidity.
• DIN/ANSI standardization: Built to standard dimensions, so it fits a broad array of drilling machines and holders worldwide.

Use cases and scenarios:

• Automotive and aerospace components where through-holes must be drilled evenly through thicker sections.
• General engineering projects requiring one-drill versatility across steel, stainless steel, and aluminum without changing tools.
• Deep-hole drilling tasks in fabrication shops where cycle time and hole accuracy directly impact throughput.

Practical tips for best results:

• Match speeds and feeds to material: higher speeds and moderate feeds for aluminum; steadier feeds and slightly lower speed for stainless and hardened steel to manage heat.
• Use light, frequent pecking cycles when drilling deep holes to evacuate chips and prevent clogging.
• Keep your dullness in check; even high-grade HSS-E bits benefit from regular inspection and sharpness checks to maintain H10 tolerance.

Whether you’re outfitting a production line or equipping a shop for versatile, all-material drilling, the Dormer Pramet A940 3.30 mm HSS-E High-Performance Multi-Application Straight Shank Long Series Drill is designed to deliver reliable results, reducing tool changes and improving hole quality across a wide range of applications.