Dormer Pramet A110 2.80 mm HSS ST STRAIGHT SHANK LONG SERIES DRILL DIN 340

Dormer Pramet A110 2.80 mm HSS ST Straight Shank Long Series Drill DIN 340 is the precision tool you reach for when you need dependable small-diameter holes with reach. Designed for versatility and long-term performance, this drill bit balances toughness with accuracy for demanding metalworking tasks.

The 118° conventional point delivers a robust starting bite that remains easy to re-sharpen in the field or workshop. That sharp, strong point minimizes walk and helps you center quickly, even on tough workpiece surfaces. When you’re drilling through steel, aluminum, or stainless steel, this geometry keeps the hole on target from the first cut to the final depth.

Steam oxide finish isn’t just cosmetic—it's a practical feature that reduces material sticking at the cutting edge and chip buildup, promoting smoother drilling and longer edge life. That means fewer sudden stops to deburr or clear fragments, and more consistent hole diameters across long runs.

Long length series: this drill is built for depth. If your applications require deeper holes or extended reach into fixtures, braces, or recessed components, the A110 long-series design maintains rigidity and control without sacrificing accuracy. It’s a strategic choice for production environments where every millimeter of depth counts.

Made from premium HSS material, this drill bit covers a broad spectrum of materials—from common steels to aluminum and stainless steel. You’ll appreciate its resilience and dependable performance when switching between workpieces, reducing the need for tool changes and reconfigurations.

Versatility is baked in. Whether you’re using handheld drills or machine setups, the straight shank provides reliable compatibility with a wide range of collets and chucks. This makes the A110 ideal for workshops, fabrication shops, and maintenance tasks where you want a single drill that can handle many jobs without compromise.

Key use cases and benefits

• Precision pilot and through-holes in steel, aluminum, and stainless steel with minimal wander.
• Deep-hole drilling tasks where extended reach is required without sacrificing rigidity.
• Regrindable point for repeated use and tight tolerances in production environments.
• Reliable performance across hand-held and machine-based drilling setups.

Pro tips for best results:

• Match feed rate and spindle speed to the material type to maximize edge life and hole quality.
• Use a steady, moderate cutting pressure to maintain a clean chip flow and prevent overheating.
• Inspect the drilling edge after extended use and re-grind the point as needed to maintain the 118° geometry.
• Clear chips frequently on long-hole work to avoid clogging and binding in deep holes.