Dormer Pramet A110 8.30 mm HSS ST STRAIGHT SHANK LONG SERIES DRILL DIN 340

Dormer Pramet A110 8.30 mm HSS ST Straight Shank Long-Series Drill DIN 340 is purpose-built for professional metalworking where depth, precision, and reliability matter. This long-series drill combines a robust HSS core with thoughtful geometry to tackle deeper holes without compromising surface finish or accuracy.

Key features that translate into real-world results:

• 118° conventional point for confident starts, smooth penetration, and straightforward re-grinding when you need to refresh the edge.
• Steam oxide finish minimizes sticking of workpiece material to the cutting edge, promoting cleaner holes and easier chip evacuation during extended cuts.
• Long length series designed to reach deeper into workpieces, ideal for thick plates, assemblies, and applications where standard drills can’t reach the target depth.
• Premium HSS material delivers consistent performance across a range of common metals—steel, stainless steel, and even aluminum—making it a versatile addition to your tool kit.
• Straight shank provides reliable compatibility with a wide array of hand-held drills and machine chucks, delivering stable run-out at higher speeds.
• DIN 340 designation ensures precise sizing and interchangeability with compatible tooling and setups, so you can trust fitment across your workshop.

What this means in practice

• For fabricators and maintenance technicians, this drill simplifies the process of drilling deep holes in thick materials without needing specialized equipment.
• In a workshop setting, the combination of a robust point, durable HSS core, and a finish that reduces material adhesion translates to fewer wanders, faster hole completion, and less downtime.
• When working with aluminum or stainless steel, you’ll notice cleaner hole entrances and steadier chip flow, thanks to the design and surface treatment.

Who should consider the Dormer Pramet A110 8.30 mm drill

• Professionals performing deep-hole drilling in steel, stainless steel, or aluminum components.
• Shops needing a dependable, long-reach drill for both handheld and machine-driven drilling tasks.
• Anyone seeking a durable, re-grindable 8.30 mm drill that maintains accuracy across multiple materials.

Practical tips for best results

• Match spindle speed and feed rate to the material and depth to optimize life and finish; start with moderate speeds and adjust based on chip formation.
• Use light, steady feeds to prevent deflection on long reaches; ensure the drill is perpendicular to the work surface for true holes.
• Apply a suitable cutting fluid or coolant when drilling harder steels to reduce wear and thermal buildup.
• Keep the edge sharp; re-sharpen as needed to preserve the 118° point geometry and drilling performance.