Dormer Pramet A940 2.10 mm HSS-E HIGH PERF MULT-APP STRAIGHT SHANK LONG SERIES DRILL DIN/ANSI

The Dormer Pramet A940 2.10 mm HSS-E HIGH PERF MULT-APP STRAIGHT SHANK LONG SERIES DRILL DIN/ANSI is built for precision metalworking where accuracy and reliability matter most. This compact, high-performance drill is engineered to deliver consistent, high-quality holes across a range of materials while maintaining a clean, fast workflow in professional and workshop environments.

Why the A940 stands out

• 130° point angle for self-centering entrance and reduced pushing force, helping you start clean holes with less user effort and fewer wanderings.
• Bright, anti-stick finish minimizes material adhesion at the cutting edge, preventing built-up edge and improving chip control for smoother drilling passes.
• Parabolic flute design enables deeper holes in a single pass, reducing drilling time and the need for secondary operations or peck drilling.
• Premium HSS-E material expands versatility to drill a variety of metals including steel, aluminium, and stainless steel with dependable performance.
• Long series with straight shank (DIN/ANSI) ensures compatibility with standard chucks and quills, delivering stable guidance and reliable hole quality on a wide range of machines.
• High-performance geometry designed to produce accurate, repeatable holes even at higher speeds and feeds, meeting H10 hole tolerance for excellent fit and finish.

Key specifications

• Diameter: 2.10 mm
• Point angle: 130°
• Material: HSS-E
• Coating/finish: Bright
• Flute design: Parabolic for deep-hole capability
• Shank: Straight, Long Series
• Standards: DIN/ANSI
• Tolerance: h10

Ideal use cases

Whether you’re prototyping a new component or performing precision fabrication in a production environment, this drill excels in metals such as steel, aluminum, and stainless steel. It’s a reliable choice for drilling small-diameter holes in electrical enclosures, chassis, brackets, and mechanical assemblies where clean entry, minimal deflection, and consistent hole quality matter. The combination of a sharp 130° tip and a parabolic flute makes it particularly effective for deep-hole tasks without sacrificing finish or accuracy.

Practical tips for best results

• Match cutting speed and feed to the material: use higher speeds on softer alu-minium alloys and slower feeds for stainless steel to maintain edge life and hole accuracy.
• Use a proper pecking cycle for deeper holes to clear chips and prevent welding of material to the edge.
• Apply a light cutting fluid or coolant to reduce heat buildup and extend tool life—especially in stainless steel and hard alloys.
• Ensure the drill is firmly seated in a quality chuck with a true runout to preserve hole concentricity and finish.
• Inspect the hole tolerance (H10) after drilling to confirm it meets the required fit for subsequent components.

From electronics housings to precision mechanical assemblies, the Dormer Pramet A940 drill delivers dependable performance, helping you achieve repeatable, professional results with every hole. This is the tool you turn to when you need a small-diameter, high-precision drill that works across materials without compromising on speed or finish.