Dormer Pramet A110 7.80 mm HSS ST STRAIGHT SHANK LONG SERIES DRILL DIN 340

Meet the Dormer Pramet A110 7.80 mm HSS Straight Shank Long Series Drill (DIN 340) — a purpose-built drill bit designed for precision drilling across a range of metals. With its robust build and thoughtful geometry, this tool is ready to tackle deep holes and tight tolerances in everyday workshop tasks.

• 118° conventional point delivers a strong, self-centering tip that’s easy to re-grind, helping you start holes cleanly and reduce wandering during initial penetration.
• Steam oxide finish minimizes chilling and material sticking at the cutting edge, promoting smoother chip flow and extended edge life for frequent use in busy workspaces.
• Long length series provides increased reach for deeper holes, blind pockets, and challenging setups where standard-length drills won’t reach.
• Premium HSS material stands up to a variety of workpiece materials — from steel and aluminium to stainless steel — offering reliable cutting performance across common machining projects.
• DIN 340 straight shank ensures secure compatibility with standard chucks and holders, delivering stable alignment in both handheld drills and machine-based drilling setups.
• Versatile product designed for both handheld use and machine applications, making it a dependable choice for workshops that require flexibility without swapping tools.

Why this drill stands out in real-world use:

• Deep-hole capability without compromising edge integrity, ideal for automotive components, fabrication, and electrical enclosures where precise bore sizing matters.
• Consistent hole quality across materials, thanks to the 118° tip geometry and steam oxide finish that reduce buildup and produce cleaner cut surfaces.
• Long-term value from a single tool that can handle multiple metals, minimizing the need for specialized bits and simplifying inventory management.

Practical usage tips for best results:

• Match spindle speed and feed rate to the material: moderate speeds for steels, slightly slower when drilling stainless to reduce heat buildup.
• Maintain a sharp edge and regrind as needed to sustain drilling performance and prolong tool life.
• Use appropriate drilling fluid or light lubrication to reduce wear and improve surface finish, especially on harder metals.
• Let the drill do the work—avoid excessive feed pressure to prevent deflection or wandering, especially when drilling deep holes.