Dormer Pramet R463 N29 CARBIDE TIALN FORCE-M STEPPED SHANK COOLANT FEED LONG SERIES (X5D) DRILL DIN 6537 L

The Dormer Pramet R463 N29 Carbide TiAlN Force-M Stepped Shank Coolant Feed Long Series Drill (DIN 6537 L) is a high-performance tool designed for challenging materials, including stainless steel and other heat-resistant alloys. Its long-series length and stepped shank deliver extended reach and rigid stability for deep-hole work.

Its 140° 4-facet split point promotes self-centering and reduces start-up thrust for clean, accurate holes, while the Titanium Aluminium Nitride (TiAlN) coating extends tool life and maintains cutting performance when drilling hard metals. The ctw flute design with coolant feed adds strength and enables higher cutting speeds and feeds, helping you achieve consistent results with H9 hole tolerance.

• 140° 4‑facet split point: Self-centering and reduced push force provide accurate starts and cleaner holes, even in stainless steel and hard alloys.
• TiAlN coating for longer life: Titanium Aluminium Nitride coating increases tool life and maintains cutting performance when drilling challenging materials.
• ctw flute design with coolant feed and long-reach stepped shank: Strengthened flute geometry and coolant delivery support higher speeds and feeds and deeper holes with reliable chip evacuation.

These design elements translate into faster setup, fewer tool changes, and consistently high-quality holes across stainless steel and heat-resistant alloys. The self-centering point reduces rework, the TiAlN coating extends service life in demanding applications, and the flute design with coolant feed enables efficient chip removal and deeper hole making at higher speeds. For shops needing repeatable, precision results—especially where H9 tolerances matter—this drill delivers dependable performance you can trust in production or maintenance environments.