Dormer Pramet A976 3.30 mm HSS-E HIGH PERF MULT-APP STRAIGHT SHANK EXTRA LONG SERIES (1) DRILL DIN 1869 / 1

Meet the Dormer Pramet A976 3.30 mm HSS-E High Performance Multi-Application Straight Shank Extra Long Drill (DIN 1869). This precision drill is engineered for tight tolerances, deep bores, and reliable performance across a variety of metals, making it a staple for professional shops and serious hobbyists alike.

• 130-degree point for confident self-centering on entry, reducing wandering and the push force needed to start through challenging materials.
• Bright finish minimizes adhesion of workpiece material to the cutting edge, promoting smoother starts and easier chip clearance.
• Parabolic flute design tailored for drilling extra-deep holes in a single pass, delivering cleaner holes with steady chip evacuation.
• Premium HSS-E material delivers improved wear resistance and red-hardness compared with standard HSS, suitable for drilling steel, aluminium, stainless steel, and other common alloys.
• Extra-long length series provides extended reach for deep cavities, long through-holes, and applications where standard drills can’t reach.
• Straight shank ensures stable, universal compatibility with a wide range of drill chucks and toolholding systems.

This drill is ideal for scenarios where depth and precision matter. Use it for deep-hole drilling in automotive assemblies, machinery housings, aerospace components, and intricate fabrication tasks where you need a single tool to reach distant bores without sacrificing hole quality. The combination of a 3.30 mm diameter, extra-long reach, and HSS-E composition helps you maintain accuracy across multiple passes and materials, reducing tool changes and downtime.

Compared with standard-length drills, the A976’s extended reach minimizes tool changes and maintains stable geometry through long bores, delivering consistent hole diameter and straightness even in demanding workpieces. Its 130-degree point and parabolic flute work together to start cleanly and evacuate chips efficiently, helping prevent workpiece recuts and prolonging tool life.

Practical tips for best results: set an appropriate cutting speed for the material, use steady, consistent feeds, and apply a suitable cutting fluid to optimize edge life and chip removal. When drilling stainless steel or harder alloys, ensure proper alignment to avoid deflection and consider using a pilot hole to guide the drill for the deepest bores.