Dormer Pramet R520 4.00 mm CARBIDE TiN CDX STRAIGHT SHANK STUB DRILL DIN 6539

The Dormer Pramet R520 4.00 mm carbide TiN CDX straight shank stub drill (DIN 6539) is built for precise, dependable hole‑making across a range of common metals. With a compact 4.00 mm diameter and a straight shank, it fits standard chucks and delivers clean, accurate holes with minimal effort.

Featuring a 130-degree point for self-centering, a Titanium Nitride coating for longer life and better performance on harder materials, and convex cutting edges that help break chips for easier removal and higher cutting speeds and feeds, this drill is designed to handle steel, aluminum, and stainless steel with consistent results.

• 130° Point for Self-Centering: Starts holes precisely and reduces push force, helping to prevent wandering and improve first-pass accuracy.
• TiN Coating for Longer Life: Titanium Nitride coating minimizes wear, delivering longer service life and steadier performance on harder materials.
• Premium Carbide with Convex Cutting Edges: Robust carbide core with convex geometry promotes efficient chip evacuation, higher cutting speeds and feeds, and reliable hole quality across steel, aluminium, and stainless steel.

With the Dormer Pramet R520, you gain a versatile, reliable drill that reduces downtime and rework while delivering consistent, high‑quality holes. The self-centering point lowers starting force, the TiN coating extends tool life under demanding use, and the convex edge geometry supports faster cutting and cleaner chip removal. Built to DIN 6539 standards with a 4.00 mm diameter, it provides dependable performance across steel, aluminum, and stainless steel, helping you complete projects faster and with confidence, achieving tight h8 hole tolerance.