Dormer Pramet A520 5.50 mm HSS TiN ADX STRAIGHT SHANK STUB DRILL DIN 1897

Designed for engineers, machinists, and DIY enthusiasts, the Dormer Pramet A520 5.50 mm HSS TiN ADX Straight Shank Stub Drill is a reliable, general-purpose drill for metalworking. It uses a DIN 1897 straight shank and a 5.50 mm diameter to deliver consistent, high-quality holes in steel, aluminium, and stainless steel.

With a 130° thinned point for self-centering, a Titanium Nitride coating for longer life, and convex cutting edges for efficient chip breakage and higher speeds, this drill stays sharp longer and reduces the effort required to start and finish holes, achieving tight h9 tolerances and smooth finishes.

• 130° thinned point for easy start: self-centering entry reduces push force and minimizes wandering, helping you begin every hole cleanly from the first cut.
• TiN coating for longer tool life: titanium nitride extends the drill’s service life and maintains cutting performance when drilling harder materials.
• Convex cutting edges for efficient chip control: promotes easier chip breakage and allows higher speeds and feeds for faster, more consistent hole production.

By combining these features, you can complete jobs faster with less rework, across multiple materials using a single high-quality drill. The A520’s durability and compatibility with standard drill chucks make it a dependable choice for workshops, maintenance tasks, and production environments where consistent hole quality matters.