Dormer Pramet A110 6.90 mm HSS ST STRAIGHT SHANK LONG SERIES DRILL DIN 340

The Dormer Pramet A110 6.90 mm HSS straight shank drill is purpose-built for professionals who demand reliability when drilling deeper into metal. Designed to DIN 340 standards, this long-series bit thrives where reach and precision matter most, making it a dependable choice for both shop floors and field work.

Engineered performance for demanding materials — Crafted from premium high-speed steel (HSS), this drill handles steel, aluminum, and stainless steel with consistent chip formation and clean holes. Its 118° conventional point provides a strong, self-centering tip that remains easy to re-grind, preserving cutting life and reducing downtime between retasks.

Steam-oxide finish for smoother cutting — The steam oxide coating minimizes material sticking to the cutting edge, helping you maintain penetration without built-up edge and ensuring steadier feeds and reduced cycle times.

Long length, deep-hole capability — The long-series design is purposefully chosen for drilling deeper holes and reaching recessed features. This geometry maintains rigidity and stability, so you can trust accuracy even when the workpiece demands extra length.

Versatility across applications — Whether you’re working with handheld drills or machine tooling, this drill delivers reliable performance in a variety of setups. The straight shank supports quick, secure clamping in standard chucks and collets, enabling smooth operation in busy production lines or DIY workshops alike.

Why this drill stands out — Beyond raw material, the A110 line emphasizes practical longevity: a re-grindable tip, a finish that reduces workpiece gumming, and a geometry optimized for clean entry and repeated hole accuracy. It’s the kind of drill that reduces tool changes and speeds throughput on metalworking projects.

Use cases:

• Deep-hole drilling in steel brackets, housings, and chassis components
• Precision holes in aluminum panels where a clean entry is critical
• Intermediate to heavy-duty drilling in stainless steels where edge retention matters

Tips for optimal results — Match the feed rate to material hardness, use steady, moderate drilling speeds, and monitor wear on the tip. When regrinding, preserve the 118° point geometry to maintain predictable cutting behavior and hole accuracy over time.