Dormer Pramet A110 8.40 mm HSS ST STRAIGHT SHANK LONG SERIES DRILL DIN 340

The Dormer Pramet A110 8.40 mm HSS ST Straight Shank Long Series Drill (DIN 340) is purpose-built for precision, reach, and reliability in everyday fabrication and machining work. With a deliberate 8.40 mm diameter, this drill is tuned to deliver clean starts, consistent holes, and long service life in a variety of materials.

• 118-degree conventional point for confident starts, reduced walking, and an easy re-grind edge when sharpening is needed—keeping downtime to a minimum on busy shop floors.
• Steam oxide finish minimizes chip adhesion and protects the cutting edge, helping maintain cutting efficiency under challenging materials and longer runs.
• Long length series designed to reach deeper into workpieces and access through-holes where standard drills fall short—without compromising rigidity or alignment.
• Premium HSS (high-speed steel) formulation handles a broad range of materials, including carbon steel, alloys, aluminum, and stainless steel, making it a versatile choice for mixed-material projects.
• Straight shank compatibility with a wide selection of chucks and collets, providing stable, precise feeding in handheld drills and machine spindles alike.
• DIN 340 standard ensure interchangeability and dependable fit across compatible toolholding systems and equipment.

This drill shines in real-world scenarios: - Drilling deep holes in steel frames, plates, or fabrications where standard-length bits can’t reach, without sacrificing accuracy or concentricity. - Creating clean, precise holes in aluminum components for quick assemblies or prototypes. - Through-holes in stainless steel where heat and wear demand a robust, grindable edge that maintains geometry throughout the operation. - Versatile use in both hand-held drills and dedicated drilling machines, thanks to the reliable straight shank and steady cutting action. Practical guidance to maximize life and results: - Start with a sharp edge and maintain regular re-grinding intervals to preserve the 118° point geometry. - Use appropriate cutting fluid or coolant, especially on stainless steel or harder alloys, to reduce heat and extend edge life. - Match feed rate and spindle speed to material type and hole depth; avoid excessive feed that can cause deflection or edge chipping. - Secure the workpiece firmly and use a pilot hole for larger diameter applications to improve accuracy and reduce drill wandering. Designed for professionals who demand performance without compromise, the A110 8.40 mm HSS ST Straight Shank Long Series Drill DIN 340 scales from prototype runs to production tasks, delivering dependable depth, clean holes, and straightforward tool-change compatibility every time.