Meet the Dormer Pramet A976 5/16 Inch HSS-E high-performance drill — a purpose-built solution for deep-hole drilling that combines precision geometry with durable, high-speed steel construction. Designed for multi-application use, this straight-shank drill is ready for days on the shop floor where reach and reliability matter.

130° self-centering point ensures clean starts and reduced push force, so you drill with less effort and tighter hole accuracy from the first moment. This geometry helps minimize wandering and boosts productivity, especially when chasing long through-holes in heavier materials.

Bright finish reduces material adhesion on the cutting edge, promoting smoother chip evacuation and longer tool life in challenging workpieces. This finish, paired with premium HSS-E, keeps performance consistent across a range of metals.

Parabolic flute design with quick-spiral geometry enables drilling very deep holes in a single pass, minimizing pecking cycles and improving hole quality in long workpieces. When you need to drill 15xD or more without interruption in steel, this flute profile delivers dependable chip control and steady cutting action.

Premium HSS-E material (cobalt-based high-speed steel) combines toughness and wear resistance, making it suitable for drilling steel, aluminum, and stainless steel. This versatility is ideal for workshops that tackle mixed-material projects and require a single drill family to cover multiple operations.

Extra-long length, DIN 1869 / 1 design provides extended reach for deep-hole applications, with a straight shank for straightforward tool holding in standard collets and holders. The A976 series is specified to DIN 1869 / 1, ensuring compatibility with common tooling standards and predictable interchangeability in your setup.

Specifics you can rely on: 5/16 inch diameter (0.3125"), total length around 240 mm, flute length about 165 mm, 130° point, and HSS-E with a bright finish. This combination is tailor-made for long-reach drilling where accuracy, surface finish, and process stability matter most.

Ideal for projects that demand deep-hole capability without centration steps, such as through-holes in structural steel, long-pocket features in aluminum components, or stainless parts where consistent hole quality is essential.