Meet the Dormer Pramet A952 17.00 mm HSS HIGH PERF MULT-APP MORSE TAPER SHANK EXTRA LONG SERIES DRILL DIN 1870 — a purpose-built solution for deep-hole drilling across a range of materials. This extra-long drill is designed to reach far into cavities while preserving edge integrity and precision, making it a staple for machine shops that demand consistency.

Key advantages that matter in real work

• 130-degree point — helps the drill self-center on tough starting surfaces and reduces the push force required to initiate cutting, improving first-pass accuracy and reducing wander on stainless steel and other hard-to-machine alloys.
• Bright finish — minimizes material welding to the cutting edge, promoting clean chip formation and reducing the need for frequent deburring or edge restoration.
• Special parabolic flute design — optimized for deep-hole drilling, enabling a single-pass cut through long workpieces while promoting efficient chip removal and reduced flute clogging.
• Premium HSS material — a versatile all-rounder capable of drilling steel, aluminium, and stainless steel with reliable flute life and retentive sharpness.
• DIN 1870 Morse taper shank with extra-long reach — designed for compatibility with a wide range of milling machines and drill presses that use a Morse taper, enabling extended hole depths in a single setup.
• Multi-app, no-fuss versatility — suitable for drilling in various machine applications where the drill is held directly in the spindle, reducing tool changes and setup time.

What problems does it solve?

For shops that routinely punch deep holes, standard-length drills require multiple passes or risk misalignment. The A952’s extended length and parabolic flute address this by delivering deeper holes in a single pass, while the 130° point keeps starting accuracy high and reduces heat build-up at the cutting edge. The bright finish reduces sticking between the workpiece and the tool, translating to fewer interruptions and smoother operation.

Ideal use cases

• Deep-hole drilling in steel, stainless steel, and aluminum for automotive, aerospace, and mold-making applications.
• Machining operations where a tool is mounted directly in the spindle and depth is critical, such as through-holes in structural components or precision jigs.
• Rugged, long-reach drilling tasks requiring consistent edge life and hole quality across batches.

Specifications at a glance

Diameter: 17.00 mm

Material: Premium High-Speed Steel (HSS)

Shank: Morse taper, extra-long series

Standards: DIN 1870

Point geometry: 130-degree self-centering point