Dormer Pramet A110 6.50 mm HSS ST STRAIGHT SHANK LONG SERIES DRILL DIN 340

The Dormer Pramet A110 6.50 mm HSS ST Straight Shank Long Series Drill (DIN 340) is built for serious drilling work where depth, precision, and versatility matter. This long-length tool is purposefully engineered to reach deeper holes without sacrificing core cutting performance, making it a trusted companion in both handheld and machine applications.

118-degree conventional point you can trust

The A110 features a robust 118° point geometry that delivers a confident, accurate entry every time. The point is easy to re-grind, ensuring you can refresh its edge and maintain optimal geometry for countless drilling sessions. This means longer tool life between sharpenings and consistent hole quality, even on tougher workpieces.

Steam oxide finish reduces sticking and buildup

Steam oxide finishes are designed to minimize friction between the drill and the workpiece. By reducing chip adhesion and welding on the cutting edge, this drill bit maintains a clean cut, improves surface finish, and helps you push through longer jobs with less downtime for cleanup or edge restoration.

Long length for deep holes and tight spaces

Perfect for applications where extended reach is essential, the long-series design provides the extra flute length needed to drill deeper holes or access recessed areas. Whether you’re fabricating, performing maintenance in confined enclosures, or working on automotive frames, this drill maintains rigidity and steadiness as you extend your drilling depth.

Premium HSS material for a broad material range

Crafted from high-speed steel, this drill handles a wide spectrum of materials—from standard carbon steels to alloys, aluminum, and stainless steel. The combination of strength, toughness, and heat resistance makes it a reliable choice for both production tasks and bespoke projects alike.

Universal straight shank for flexible mounting

The straight shank design is compatible with a broad range of chucks and holders found in both manual drills and CNC/machine setups. This versatility keeps tool changeovers quick and simple, reducing downtime and keeping you productive across different machines and workflows.

Use cases, tips, and practical insights

• Best fits: deeper hole drilling in steel, aluminum, and stainless steel, especially when access is limited or extended reach is required.
• Operational guidance: start with a precise center punch, use cutting oil or coolant for metals, and maintain steady feed to preserve edge life of the 6.50 mm diameter.
• Maintenance tip: keep the point sharp and regrind when you notice increased wandering or slower cutting, then re-sharpen to restore the 118° geometry.
• Compared to standard-length bits, expect improved hole straightness and axial alignment in depth-critical applications thanks to the long flute length and stiff straight shank.

When you need dependable, long-reach drilling performance in metalworking, the Dormer Pramet A110 6.50 mm HSS ST Straight Shank Long Series Drill delivers precise entry, durable edge retention, and versatile compatibility for both handheld and machine-based operations.