Dormer Pramet A110 9.60 mm HSS ST STRAIGHT SHANK LONG SERIES DRILL DIN 340

Designed for professionals who demand reliable metal drilling performance, the Dormer Pramet A110 9.60 mm HSS Straight Shank Long Series Drill DIN 340 is built to cut cleanly, reach deeper holes, and stay sharp through demanding jobs. This bit combines a robust cutting geometry with practical features that make precision drilling feel effortless in both handheld and machine contexts.

• 118-degree conventional point — The strong, self-centering tip starts holes with accuracy and minimizes wandering on tougher materials. The geometry is easy to re-grind, so you can restore sharpness on the job and extend the bit’s life without sacrificing setup time.
• Steam oxide finish — A treated surface reduces built-up edge and chip welding, especially on sticky metals. This finish supports consistent cutting action, cleaner hole entrances, and smoother chip evacuation under heat, helping maintain a true cut with less friction.
• Long length series — Reach deeper into workpieces without constantly swapping bits or adding extensions. Ideal for drilling through thick plates, nested holes, or components where extended reach is a practical necessity, all while keeping a steady, reproducible hole diameter.
• Premium HSS material — High-speed steel delivers a balanced blend of hardness and toughness, excel-ling across a wide range of metals. From steel and aluminum to stainless steel, this drill bit maintains cutting performance and reliability across typical workshop materials.
• Straight shank, versatile use — The straight shank design ensures secure seating in both hand-held and machine-driven setups, including handheld drills, drill presses, and light CNC or engraving machines. DIN 340 conformity means easy integration with standard tool holders and chucks.

Who benefits most from the A110 9.60 mm drill? fabricators and maintenance technicians who regularly work with thick metal sections, engineers assembling components that demand accurate deep holes, and DIYers tackling ambitious metal projects at home who won’t compromise on hole quality. This drill bit is particularly well-suited for drilling steel, alloyed steels, aluminum, and stainless steel, where a dependable, long-reach solution is essential.

Use cases and practical tips

• Deep-hole drilling in structural steel or thick-walled components where standard-length bits fall short.
• Fabrication work requiring precise hole depth and alignment in aluminum brackets or stainless fittings.
• Maintenance tasks that involve refurbishing fastener holes in metal assemblies or repairing equipment with deep mounting Points.
• Workshop projects that demand a single bit capable of handling multiple materials without changing bits frequently.

How to get the best results

• Match the spindle speed and feed rate to the material being drilled; use the lowest effective speed for tough metals to reduce heat and extend edge life.
• Apply a suitable cutting fluid or light oil to reduce friction, improve chip flow, and protect the tip during long cutting passes.
• Begin with a centered punch mark to guide the tip, maintain steady pressure, and avoid wandering—especially on shiny or slippery surfaces.
• Withdraw the bit periodically to clear chips and inspect the edge. If the edge dulls, re-sharpen the point to maintain clean starts and accurate hole diameters.
• Deburr the hole after drilling to remove sharp edges, ensuring a clean finish and proper fit for fasteners or components.

Specifications at a glance

• Diameter: 9.60 mm
• Point angle: 118 degrees
• Shank: Straight
• Length: Long Series
• Material: Premium high-speed steel (HSS)
• Finish: Steam oxide
• Standards: DIN 340
• Application: Suitable for steel, aluminum, stainless steel, and other common metals

With the Dormer Pramet A110, you get a drill bit that pairs dependable, long-reach drilling capacity with a geometry designed for precision and durability. The long series length reduces the need for extensions, while the 118-degree point and steam-oxide finish deliver clean starts and reliable performance across a range of metals. Whether you’re outfitting a workshop, upgrading a machine shop, or tackling a detailed fabrication project, this drill bit is built to deliver consistent results—hole after hole, job after job.