Dormer Pramet A920 4.00 mm HSS-E HIGH PERF MULT-APP STRAIGHT SHANK STUB DRILL DIN/ANSI

The Dormer Pramet A920 4.00 mm HSS-E high-performance multi-application straight shank stub drill is built for dependable metal drilling across a range of materials. With a DIN/ANSI straight shank and a compact stub length, it fits standard drilling equipment and is ideal for engineers, fabricators, hobbyists, and maintenance teams who need reliable, accurate holes fast.

Designed for steel, aluminium, and stainless steel, this 4.00 mm drill delivers consistent performance at higher speeds and feeds. Its 130-degree point, bright finish, and parabolic flute work together to reduce startup force, prevent workpiece material from sticking to the edge, and allow deeper holes in a single pass.

• 130° Self-Centering Point: Promotes precise starts and reduces the push force required, helping you achieve accurate holes with less operator effort.
• Parabolic Flute Design for Deep Holes: Enables deeper holes in a single pass while promoting efficient chip evacuation and smoother cutting.
• Premium HSS-E for Multi-Material Use with Bright Finish: Wear-resistant steel provides long tool life across steel, aluminum, and stainless steel; the bright finish minimizes sticking and supports high-speed, high-feed drilling with h10 hole tolerance.

With this drill, you’ll enjoy precise starts, clean hole quality, and long tool life across many materials. The combination of a self-centering geometry, efficient chip evacuation, and wear-resistant HSS‑E construction reduces downtime, increases throughput, and helps you meet tight tolerances consistently, making it a dependable choice for production runs, repairs, and prototyping alike.