Engineered for micro-precision and dependable performance, the Dormer Pramet A110 0.80 mm HSS Straight Shank Long Series Drill, DIN 340, is the go-to choice when you need a tiny, reliably sharp drill that can handle deeper holes. The 118-degree conventional point delivers a strong, self-centering start, reducing wandering on initial contact and making re-grinding straightforward when you need to refresh the edge.

Key features that matter in real-world work

• 0.80 mm diameter— perfect for small, high-precision holes in everyday metalworking tasks, electronics enclosures, and intricate mechanical assemblies.
• 118° conventional point— promotes clean starts, minimizes walking, and yields accurate hole geometry with less feeding pressure.
• Long length series— designed for drilling deeper holes and accessing recessed areas where standard-length bits cannot reach, all without changing tools.
• Premium HSS material— built to cut a range of materials, including steel, aluminum, and stainless steel, with good wear resistance and extended tool life.
• Straight shank— ensures secure engagement in standard drill chucks and collets, providing consistent runout and reliable performance in both handheld and machine drilling setups.
• DIN 340 compliant— guarantees dimensional consistency and compatibility across tools and machines, helping you maintain a streamlined tooling inventory.

Why this drill bit stands out

The A110 combines a small-diameter yet robust tip with a long reach, making it ideal for situations where space is tight and accuracy is non-negotiable. Its edge geometry holds sharpness longer than generic micro-drills, reducing the frequency of tool changes in high-precision workflows. Whether you’re punching accurate holes in stamped parts, fabricating fixtures, or refining prototypes, this drill delivers predictable results without compromising on speed or finish.

Practical tips for best results

• Use a steady, moderate feed rate and ample lubrication to maintain edge integrity during deep-hole drilling.
• When drilling stainless steel or hard alloys, start with light cuts to establish a stable hole and reduce heat buildup.
• Keep the workpiece clamped and consider using pecking cycles to evacuate chips and prevent clogging in longer holes.
• Sharpen or re-grind the point when you notice increased runout or a rough cut; the 118-degree point is designed to re-sharpen cleanly to extend tool life.