Dormer Pramet R520 5.50 mm CARBIDE TiN CDX STRAIGHT SHANK STUB DRILL DIN 6539

The Dormer Pramet R520 5.50 mm carbide drill with a CDX straight shank is designed for reliable, high-precision hole making across a range of materials. Compatible with DIN 6539 straight shank tooling, it’s a versatile choice for workshops, engineers, and manufacturing environments that demand consistent results.

With a 130° point, it begins cut cleanly and centers itself, minimizing drift and reducing the push force required to start a hole for faster, more controlled drilling.

• 130° self-centering point: Helps start holes cleanly and reduces the push force required, improving accuracy from the first entry.
• Titanium Nitride (TiN) coating: Extends tool life and enhances performance when drilling harder materials by improving wear resistance and heat management.
• Convex cutting edges: Promote easier chip breaking and evacuation, enabling higher cutting speeds and feeds for faster, smoother hole creation.

This premium carbide drill is capable of drilling a wide range of materials—including steel, aluminum, and stainless steel—and delivering high-quality, accurate holes even at high speeds and feeds (H8 tolerance). The combination of geometry, coating, and robust carbide provides reliable performance, reduces downtime, and helps you achieve consistent results across demanding applications.