Dormer Pramet A940 6.80 mm HSS-E HIGH PERF MULT-APP STRAIGHT SHANK LONG SERIES DRILL DIN/ANSI

Meet the Dormer Pramet A940 6.80 mm HSS-E High Perf Mult-App Straight Shank Long Series Drill (DIN/ANSI). Built for serious metalworking, this long-series PFX drill blends precision geometry, exceptional durability, and a design that thrives across a wide range of materials. Its straight shank and DIN/ANSI compatibility ensure reliable fitment in common chucks and holders, making it a versatile workhorse for production and repair environments alike.

Key performance features

• 130° point for self-centering and easier starts — the notched, precise point minimizes wandering on initial contact and reduces the push force required to begin cutting, improving first-pass accuracy.
• Parabolic flute design for deep holes in one pass — engineered to evacuate chips efficiently, enabling extra-deep drilling without the need for frequent pecking, which shortens cycle times and enhances hole quality.
• Bright finish for better chip flow — a smooth, polished surface reduces material sticking to the cutting edge, promoting cleaner holes and easier workpiece release.
• Premium HSS‑E (cobalt-based) material — built for durability across steel, stainless steel, and aluminum, delivering reliable performance in demanding environments.
• Long-series, straight-shank construction — designed for deep-hole work and compatibility with standard tooling holders, delivering stable alignment and maximum reach in a single tool setup.
• DIN/ANSI rated for interchangeable use — designed to fit a broad ecosystem of machines and accessories, so you can rely on consistent results across equipment.
• Ø 6.80 mm drill diameter — a common, versatile size for clearance and pilot-hole applications, with the capability to perform fast, precise drilling in a single pass.
• 10×D drilling capability without pecking (in steel and similar materials) — the combination of point geometry and flute design supports extended drilling depths in one pass, reducing tooling changes and downtime.

Who benefits most

This drill is a natural fit for machine shops, fabrication teams, and maintenance facilities that regularly drill through steel, stainless steel, and aluminum. Ideal for deep-pocketing tasks, through-holes, and multi-pass jobs where hole diameter accuracy and roundness matter. The A940’s long reach and robust build also make it a dependable choice for assemblies with tight tolerances and demanding production schedules.

Practical usage tips

• Match speeds and feeds to the material family (steel, stainless, or aluminum) and use light lubrication to optimize chip evacuation and tool life.
• Secure the workpiece firmly to minimize movement during entry and drilling, especially when starting on thicker sections or harder substrates.
• For deep holes, rely on the parabolic flute to move chips efficiently; pause briefly to clear chips if you notice resistance or increasing cutting forces.
• Choose the 6.80 mm diameter for practical clearance holes or as a precise pilot for subsequent larger drills, taking advantage of the A940’s multi-application capability.

Designed to perform with reliability and consistency, the Dormer Pramet A940 6.80 mm HSS-E Long Series Drill is a strategic upgrade for anyone seeking high-quality holes with minimal setup and maximum depth in a single pass.