Introducing the Dormer Pramet A976 3/8 Inch HSS-E High Perf Multi-App Straight Shank Extra Long Drill (DIN 1869 / 1) — a purpose-built twist drill engineered to conquer deep-hole challenges with reliability and precision.

Why this drill stands out

• 130° point promotes self-centering starts and lowers the initial push force, helping you begin every hole with confidence and minimal wandering.
• Bright, burr-free finish reduces friction and prevents workpiece material from sticking to the cutting edge, delivering cleaner holes and less post-processing.
• Parabolic flute design optimizes chip evacuation for extended drilling depth, enabling extra-long holes to be drilled in a single pass without clogging or stalling.
• Premium HSS-E material stands up to demanding materials — steel, aluminium, and stainless steel alike — delivering dependable performance across a wide range of applications.
• Extra long length specifically engineered for very deep holes and applications where reach matters, without compromising rigidity or stability.
• DIN 1869 / 1 compliance ensures compatibility with standard holders and equipment, making replacement straightforward in professional workshops.

Ideal use cases and who benefits

• Deep-hole drilling in engine blocks, molds, and aerospace components where reach is critical and hole depth exceeds standard bit length.
• Fabrication and maintenance work involving thick materials or assemblies that require precise center starts and clean hole entrances.
• Workshop environments that demand a versatile drill capable of handling multiple materials with consistent results.

How to maximize performance

• Choose appropriate spindle speed and feed rate for the material — start with conservative speeds on stainless steel, then adjust as needed for clean penetration and steady chip flow.
• Maintain steady pressure and avoid side loading; the 130° point helps with starting accuracy, but a true center punch followed by a gradual drill entry will protect the cutting edge.
• Use standard drilling lubrication or cutting fluid to reduce heat, improve tool life, and extend the drill’s reach efficiency during deep-hole tasks.
• Ensure your setup provides adequate support for the extra-long bit to minimize deflection and maintain a true bore.
• Inspect the bit after use for any signs of wear and re-sharpen or replace as needed to preserve hole quality and bit life.

Performance at a glance: One drill that handles multiple materials, delivers precise starting and clean holes, and reaches into depths others can’t — all in a single, reliable tool designed to slot into standard DIN 1869/1 setups.