Dormer Pramet R520 8.10 mm CARBIDE TiN CDX STRAIGHT SHANK STUB DRILL DIN 6539

The Dormer Pramet R520 is a high-performance carbide stub drill with a straight DIN 6539 shank, sized at 8.10 mm in diameter. Designed for versatile use across steel, aluminum, and stainless steel, it features a 130-degree point that self-centers the hole and reduces the push force required to begin cutting—helping you achieve clean starts and accurate holes from the first cut. The Titanium Nitride (TiN) coating enhances tool life and keeps cutting action consistent when drilling harder materials.

Engineered for engineers, machinists, and dedicated hobbyists alike, this drill excels at high-speed drilling while maintaining reliable hole quality (h8 tolerance). Convex cutting edges aid in breaking chips more easily, improving chip evacuation and allowing higher cutting speeds and feeds. Built from premium carbide, it’s a practical choice for demanding everyday fabrication work and precision projects.

• 130° Self-Centering Point: Starts holes precisely with less push force, reducing wandering and improving first-pass accuracy.
• TiN Coating for Longer Life: Extends tool life and sustains performance when drilling harder materials like stainless steel.
• Convex Cutting Edges for Efficient Cutting: Breaks chips easily and supports higher speeds and feeds for faster cycle times.

With the Dormer Pramet R520, you gain consistent, repeatable results across a broad material range, reduced downtime, and confident performance at higher production speeds. It’s a dependable choice for precise, efficient hole creation in both shop-floor and workshop environments.