Dormer Pramet A520 25/64 Inch HSS TiN ADX STRAIGHT SHANK STUB DRILL DIN 1897

The Dormer Pramet A520 25/64 Inch HSS TiN ADX Straight Shank Stub Drill (DIN 1897) is a versatile drill bit designed for reliable holemaking across steel, aluminium, and stainless steel. With a straight shank and premium HSS core, it provides dependable performance in a wide range of machining setups.

It features a 130° thinned point that self-centers the start and reduces push force, a Titanium Nitride coating that extends tool life and improves performance on harder materials, and convex cutting edges that promote fast chip breakage and smooth entry. This combination supports high-speed drilling with precise hole quality.

• 130° Thinned Point for Easy Start and Self-Centering: Helps start holes cleanly, reduces starting resistance, and minimizes wandering for accurate hole locations.
• Titanium Nitride Coating for Longer Tool Life: TiN coating reduces wear and extends service life, maintaining sharpness and performance when drilling harder materials.
• Convex Cutting Edges for Efficient Cutting and Chip Control: Smooths chip formation and removal, enabling higher speeds and feeds with consistent hole quality.

This drill is built to keep your workflow moving. The combination of a self-centering point, durable TiN coating, and chip-friendly convex edges translates into faster setup, fewer tool changes, and more reliable hole quality across common materials. With its DIN 1897 straight shank, it fits standard chucks and fixtures for predictable performance, reduced rework, and consistent results at higher speeds and feeds (h9 hole tolerance).