Dormer Pramet A110 5.40 mm HSS ST STRAIGHT SHANK LONG SERIES DRILL DIN 340

The Dormer Pramet A110 5.40 mm HSS ST Straight Shank Long Series Drill, DIN 340, is built for reliable metalworking where depth and precision matter. Designed for demanding tasks, this drill blends strength, reach, and versatility in a single tool you can trust in both handheld and machine setups.

Key features that matter in real-world work

• 118-degree conventional point — delivers a strong, self-centering start that’s easy to re-grind, helping you maintain accuracy hole after hole and extend the life of the cutting edge.
• Steam oxide finish — minimizes material sticking to the cutting edge, promoting cleaner holes and reducing pullout or built-up edge during persistent drilling tasks.
• Long length series — optimized for drilling deeper holes and reaching into tight spaces or thick workpieces where standard drills fall short.
• Premium HSS material — versatile enough to handle a variety of metals, including steel, aluminum, and stainless steel, making it a dependable workhorse in mixed-material environments.
• Straight shank (DIN 340) — compatibility with a wide range of chucks and machine spindles, plus straightforward handheld drilling when you need portable capability.

Why this drill stands out in practice

• Designed for durability in daily fabrication, maintenance, and repair work where reliable performance and predictable tool life are crucial.
• Longer reach reduces tool changes and streamlines workflows in cavity drilling, through-holes in thick plates, and challenging assemblies.
• Versatility across materials means fewer tool changes—drill steel for structural components, aluminum for light alloys, and stainless steel for corrosion-resistant parts—without swapping tools.

Ideal use scenarios

• Through-holes in steel frames, enclosures, and brackets where depth is a limiting factor for shorter bits.
• Prototyping or production environments that require quick setup with handheld drilling or CNC/machine tools.
• Edit-ready holes in mixed-material assemblies where a single drill can perform across diverse metals.

Practical tips for best results

• Pair with appropriate speed and feed settings for the material you’re drilling, and use steady pressure to exploit the 118-degree point’s self-centering capability.
• Maintain the edge with light re-grinding as needed to preserve cutting geometry and prolong tool life in repetitive jobs.
• Use cutting fluid or a suitable lubricant when drilling stainless steel to reduce heat and wear, especially in deeper holes.