Dormer Pramet A110 8.25 mm HSS ST STRAIGHT SHANK LONG SERIES DRILL DIN 340

Meet the Dormer Pramet A110 8.25 mm HSS straight shank long series drill, DIN 340—a purpose-built solution for deep drilling in metal. This is not a one-trick bit; it’s a reliable workhorse designed to handle demanding holes with consistent accuracy in a range of materials.

Key features

• 118-degree conventional point that creates a strong, easily re-sharpened tip for precise starts and reduced wandering.
• Steam oxide finish minimizes material sticking to the cutting edge, promoting smoother chip flow and steadier performance across passes.
• Long length design delivers increased reach for deep holes and applications where extended depth is essential.
• Premium HSS material delivers dependable drilling across steel, aluminium, and stainless steel, making it a versatile choice for mixed-material projects.
• Straight shank design ensures broad compatibility with common drill chucks and machine setups, from handheld drills to CNC and milling machines.
• DIN 340 standard compatibility guarantees reliable interchangeability within standardized tooling systems.

Applications and use cases

Ideal for metal fabrication, automotive maintenance, plumbing, and industrial assembly where deep, clean holes are required. The 8.25 mm diameter is well-suited for clearance and through-holes, bolt holes, or passes through multi-layer components, while the long series length helps you reach through obstructing material or stacked assemblies.

Why this drill stands out

• Designed for real-world drilling tasks—start holes confidently, maintain edge geometry, and reduce downtime from frequent tool changes.
• Re-sharpenable tip extends tool life in busy shops, helping keep costs down without sacrificing performance.
• Steam oxide finish supports stable cutting action and consistent hole quality across longer drilling sessions.

Practical tips for best results

Match speed and feed to the material type, use a light cutting fluid for metals, and avoid running the drill dry to prevent edge wear. For deep holes, employ gentle pecking cycles to clear chips and preserve hole diameter accuracy. This drill is ready for both handheld use and machine-based drilling, so you can choose the approach that fits your workflow.