Precision meets extended reach with the Dormer Pramet A977 6.00 mm HSS-E High Performance Multi-Application Straight Shank Extra Long Series drill. Engineered for professional workshops, this drill handles deep-hole tasks across a wide range of materials while maintaining consistent accuracy and surface finish.

The 130° point is designed for self-centering action, reducing wander during entry and lowering the push force required to begin cutting. That means cleaner starts, fewer deflections, and smoother chip formation—especially important when drilling long, straight holes.

Experience a bright, non-stick cutting edge with a finish that helps prevent workpiece material from gumming the edge. This translates to fewer interruptions for edge cleaning and more efficient hole production, even on reactive materials and alloys.

Parabolic flute design for deep holes

Unique parabolic flutes optimize material evacuation in long-hole drilling, allowing you to bore deep holes in a single pass without frequent retreatments. The geometry supports reliable chip removal, reduced heat buildup, and straighter holes in challenging workpieces.

Premium HSS-E for versatile material compatibility

Made from HSS-E (high-speed steel with enhanced alloying), this drill delivers dependable performance across steel, aluminum, and stainless steel. The combination of toughness, wear resistance, and heat tolerance makes it a versatile choice for multi-material fabrication shops and job sites alike.

Extra-long length and straight shank for maximum reach

The extra-long series extends your drilling reach without compromising rigidity, ideal for deep cavities, pockets, and fixtures where space is tight. The straight shank ensures straightforward, compatible mounting in standard chucks and collets, enabling quick changes and minimal setup time.

DIN 1869 / 2 compliant construction guarantees consistent geometry and interchangeability with other DIN-spec drills, so you can rely on predictable performance across tools in your kit.

Who benefits most

Machinists, automotive technicians, moldmakers, and general engineers who routinely drill deep holes through steel, stainless steel, or aluminum will appreciate the reliability, reach, and multi-material capability of this drill. It’s an all-in-one solution for long-hole drilling tasks where precision and efficiency matter.

Use cases and practical tips

• Deep-hole drilling in automotive brackets, fixtures, and enclosures where access is limited.
• Precision pilot holes followed by gradual deepening to avoid deflection in hard materials.
• Apply appropriate cutting fluid or coolant to maximize tool life and control heat when drilling stainless steel or tough alloys.
• Maintain steady workpiece clamping and a rigid setup to preserve hole straightness with the extra-long drill length.
• Start at moderate speeds and adjust the feed to maintain a clean, continuous chip flow; pause to clear chips when drilling very deep holes.