Dormer Pramet A976 3.80 mm HSS-E HIGH PERF MULT-APP STRAIGHT SHANK EXTRA LONG SERIES (1) DRILL DIN 1869 / 1

Engineered for deep-hole precision and reliability, the Dormer Pramet A976 3.80 mm HSS-E High-Performance Multi-Application Straight Shank Extra Long Series drill is built to reach deeper than standard drills without sacrificing accuracy or surface finish. This DIN 1869–compliant drill is ideal for shops that need a single tool that covers multiple materials and demanding drilling tasks.

• 130-degree point for self-centering and reduced feed force — minimizes wandering, improves first-pass accuracy, and makes entry smoother on tough materials.
• Bright finish designed to minimize built-up edge and prevent workpiece material from sticking to the cutting edge for cleaner holes and reduced rework.
• Parabolic flute geometry enables efficient chip evacuation when drilling very deep holes, allowing a single pass without rework or secondary operations.
• Premium HSS-E substrate for enhanced red hardness and longer tool life across steel, aluminum, and stainless steel, even under higher cutting temperatures.
• Extra-long straight shank with a robust shank design for compatibility with standard collet chucks and drill chucks, giving you extended reach in tight or recessed areas.

The A976 drill is designed for multi-application use cases—from automotive and aerospace components to metal fabrication and prototype work—where long hole depth and consistent hole quality matter. The 3.80 mm diameter is ideal for precision pilot holes, through-holes in thin-walled profiles, and delicate workpieces where exact tolerances are essential.

Practical tips for best results:

• Use an appropriate cutting fluid and a steady, light feed to maintain a clean cutting edge and reduce heat buildup.
• For very deep holes, employ a peck drilling technique to evacuate chips and prevent clogging; let the parabolic flute geometry handle efficient chip removal between pecks.
• Ensure your toolholding matches the straight shank (collet or chuck) for maximum runout control and superior surface finish.
• When drilling stainless steel or other hard alloys, back off slightly if you notice increased resistance and allow the drill to cool between passes.