Dormer Pramet A920 8.40 mm HSS-E HIGH PERF MULT-APP STRAIGHT SHANK STUB DRILL DIN/ANSI

The Dormer Pramet A920 8.40 mm HSS-E straight shank stub drill is a high-performance cutting tool designed for precise hole making across a range of metals. With a DIN/ANSI straight shank and an 8.40 mm diameter, it’s ideal for engineers, technicians, and hobbyists who require reliable, accurate results and straightforward tool handling.

Its 130° point promotes self-centering and reduces the push force needed to start drilling. A bright finish helps prevent workpiece material from sticking to the cutting edge, while the parabolic flute design enables deeper holes in a single pass. Made from premium HSS-E, it’s suitable for drilling steel, aluminium, stainless steel, and other alloys, delivering high-quality holes at high speeds with tight tolerances (H10).

• 130° Self‑Centering Point: Starts cleanly and centers the hole with less effort, reducing wandering and speeding up setup so you get accurate starts every time.
• Parabolic Flute Design for Depth: Efficient chip evacuation and flute geometry that enables deeper holes in one pass, reducing downtime and rework.
• Premium HSS‑E Construction: Versatile across a wide material range (steel, aluminium, stainless steel) with reliable performance at high speeds and feeds and tight H10 tolerances.

This drill is built to improve your workflow by delivering consistent hole quality, minimizing tool changes, and maintaining performance across materials. The combination of a precise starting point, efficient chip removal, and durable HSS‑E construction helps you finish projects faster with repeatable results you can trust.