Dormer Pramet A110 22.00 mm HSS ST Straight Shank Long Series Drill (DIN 340) is precision-engineered for serious hole-making tasks, delivering reliable performance from the first cut to the last. This long-series drill is built to reach where shorter bits can’t, making it a staple for deep-hole drilling in a wide range of materials.

• 118° conventional point for a strong, self-centering start that bites quickly and resists wandering. The geometry is easy to re-grind, so you can restore its edge in-house and extend the life of the tool.
• Steam oxide finish reduces friction and prevents workpiece material from sticking to the cutting edge, promoting smoother penetration and cleaner holes.
• Long length series designed specifically for drilling deeper holes and for operations where extra reach is essential. The extended flute length helps evacuate chips efficiently, minimizing heat buildup and improving hole quality.
• Premium HSS material stands up to a broad spectrum of workpieces—steel, aluminum, and stainless steel alike—delivering consistent performance across multiple projects without frequent tool changes.
• Versatile construction compatible with both handheld drilling and machine-driven setups, making it a reliable choice for workshops, fabrication shops, and mobile field work.
• DIN 340 compliance ensures standardized sizing and compatibility with a wide range of holders and accessories, simplifying tooling inventory and replacement planning.

This drill is ideal for professionals who need a single, dependable solution for deep-hole tasks in mixed materials. Whether you’re fabricating metal supports, automotive components, or aerospace fixtures, the A110 22.00 mm drill delivers consistent hole diameters, clean entry, and predictable chip evacuation—minimizing rework and boosting productivity.

Practical tips for best results:

• Pair with appropriate lubrication or coolant to extend edge life and improve surface finish on tougher materials.
• Use a slow to moderate feed rate at the start to establish a precise pilot and prevent deflection on thin-walled workpieces.
• For deep holes, consider peck drilling sequences to break up chips and maintain steady flute clearance.
• Inspect the cutting edge regularly and re-grind as needed to maintain a sharp point and accurate hole size.