Dormer Pramet R463 4.40 mm CARBIDE TIALN FORCE-M STEPPED SHANK COOLANT FEED LONG SERIES (X5D) DRILL DIN 6537 L

The Dormer Pramet R463 4.40 mm carbide drill is a high-performance long-series tool designed for professionals who demand clean, precisely located holes in demanding materials. Built with a stepped shank and integrated coolant feed, it shines in deep-hole applications and busy workshops, delivering consistent results from first cut to last. Its 140-degree four-facet split point helps you start holes with minimal wandering and reduced start-up force, making setup quicker and more reliable.

• Self-centering 140° four-facet split point: Starts precisely where you want, minimizes walking at entry, and reduces the push force required to begin cutting for cleaner hole starts and less rework.
• TiAlN coating for extended life: The Titanium Aluminium Nitride coating boosts wear resistance, extending tool life when drilling stainless steel and other heat‑resistant alloys so you replace drills less often and maintain throughput.
• CTW flute design with coolant feed for strength and fast cutting: Special flute geometry paired with coolant delivery improves rigidity, enables higher cutting speeds and feeds, and promotes efficient swarf evacuation for smoother, deeper drilling with reliable accuracy.

Designed around premium carbide and optimized for stainless steels and hard alloys, this drill maintains hole accuracy (h9 tolerance) at high speeds and feeds. The long-series body and coolant-assisted design help reduce downtime, support deeper holes, and provide consistent performance across a range of demanding manufacturing and maintenance tasks. Whether you’re in a production line, a job shop, or on-site fabrication, it offers dependable accuracy, repeatable results, and strong overall value.