Dormer Pramet A110 6.10 mm HSS ST STRAIGHT SHANK LONG SERIES DRILL DIN 340

The Dormer Pramet A110 6.10 mm HSS long series drill combines deep-reach performance with reliable cutting action, built to DIN 340 standards. This straight-shank drill delivers a precise 6.10 mm hole with a robust, conventional 118° point designed for strength and ease of regrinding, so you can keep cutting costs down over time.

Its steam oxide finish minimizes built‑up edge by reducing material sticking to the cutting edge, helping you maintain clean holes and extend tool life even in challenging workpieces. The long series design provides extra flute length and overall length, making it ideal for drilling deeper holes and reaching into tight or awkward locations without sacrificing rigidity or accuracy.

Constructed from premium high-speed steel (HSS), the A110 long series drill handles a broad range of materials often encountered in engineering and fabrication, including steel, aluminum, and stainless steel. This versatility makes it a dependable choice whether you’re working with handheld drilling in a workshop or setting up on a machine for more consistent production runs.

Key benefits you’ll notice in practice:

• Depth without compromise: The long series geometry provides extended reach for deep holes while preserving straightness and concentricity.
• Low-maintenance tip: The 118° conventional point is strong and economical to regrind, reducing downtime and tooling costs.
• Smooth cutting in a variety of materials: HSS with a steam oxide finish supports clean cuts in steel, aluminum, and stainless steel, with reduced tendency for material adhesion at the edge.
• Flexible application: Suitable for both hand-held drilling and machine-based operations, giving you consistent results across setups.

Who benefits most from the A110 6.10 mm long series drill? technicians and machinists performing precision deep-hole work, engineers needing a dependable all-rounder for mixed-material projects, and shops seeking a single drill that covers both manual and automated workflows without swapping tools. It’s especially well-suited for tasks where reach and rigidity matter, such as drilling through thicker components, work-holding limitations, or assemblies requiring precise, straight holes with minimal pecking.

Compared to standard-length drills, this A110 long series option reduces the need for drill extensions or multiple tools when depth is a factor, helping keep setups lean and accurate. Its DIN 340 lineage and straight shank ensure compatibility with common collets and chucks, so you can integrate it into existing tooling without disruption.

Practical tips for best results:

• Use steady feeds and a clean, sharp cutting edge to maximize the benefits of the 118° point and steam oxide finish.
• For deep holes, pair with appropriate pecking strategy to manage chip removal and avoid overheating the edge.
• When drilling in softer materials, reduce RPM slightly to prevent workpiece smearing and maintain hole quality.
• Inspect the drill after heavy use and regrind the tip as needed to extend tool life and ensure consistent hole geometry.