Dormer Pramet A976 4.00 mm HSS-E HIGH PERF MULT-APP STRAIGHT SHANK EXTRA LONG SERIES (1) DRILL DIN 1869 / 1

Engineered for precision, reach, and reliable performance, the Dormer Pramet A976 4.00 mm HSS-E HIGH PERF MULT-APP STRAIGHT SHANK EXTRA LONG SERIES drill is built to tackle deep-hole tasks across a range of materials. This 4.00 mm drill, designed to DIN 1869 standards, delivers consistent results in tough machining environments where depth and accuracy matter.

Key features that matter in real work

• 130° point geometry: promotes quick self-centering on contact and reduces the push force required, helping to prevent wandering and improve first-pass accuracy.
• Bright finish: minimizes adhesion of workpiece material to the cutting edge, aiding chip flow and edge longevity for cleaner holes.
• Parabolic flute design: optimized for extra-deep holes, allowing efficient chip evacuation and enabling deep drilling in a single pass without frequent pecking.
• Premium HSS‑E material: cobalt-enriched substrate that stands up to heat and wear, suitable for drilling steel, aluminium, and stainless steel with extended tool life.
• Extra long length series: provides increased reach for deep, hard-to-access holes, making it ideal for mold making, automotive fixtures, and complex assemblies.
• Straight shank: compatibility with common chucks and spindle setups, ensuring stable guidance and minimal runout during drilling.

Practical uses and who benefits most

This drill is a versatile choice for shops that routinely need precise, deep drilling in mixed materials. Ideal for machinists, toolmakers, and production environments where deep holes are required in parts made from steel, aluminum, or stainless steel. Whether you're creating deep-reach bores for fasteners, forming internal channels, or machining insert cavities, the A976 4.00 mm drill streamlines workflows by combining a robust HSS‑E core with a geometry tailored for deep hole performance.

Why this drill matters in your toolkit

Compared with standard drills, the combination of a 130° point and parabolic flute reduces feed pressure and accelerates chip evacuation, which translates to smoother starts, fewer re-positions, and more consistent hole diameters. The bright finish and cobalt-infused HSS deliver dependable performance across metals, while the extra-long form minimizes tool changes in multi-pass, deep-hole work. This is a dedicated solution for engineers who value precision, reach, and long-term tool life in demanding applications.