Dormer Pramet A940 7.80 mm HSS-E HIGH PERF MULT-APP STRAIGHT SHANK LONG SERIES DRILL DIN/ANSI

Meet the Dormer Pramet A940 7.80 mm HSS-E HIGH PERF MULT-APP STRAIGHT SHANK LONG SERIES DRILL DIN/ANSI — a purpose-built solution for demanding metalworking tasks that demand precision, depth, and consistent hole quality. This drill is designed to perform across a wide range of materials while maintaining exact tolerances, making it a go-to choice for professionals who require reliability in every pass.

Why this drill earns its keep

• 130° point promotes self-centering and minimizes the push force needed to start cutting, resulting in cleaner entry, less wandering, and improved hole location accuracy from the very first stroke.
• Bright finish reduces sticking between the workpiece and cutting edge, helping to prevent built-up edges and easing chip evacuation for smoother drilling cycles.
• Parabolic flute design enables deep-hole drilling in a single pass, dramatically cutting cycle times and enabling long features without sacrificing hole straightness or surface finish.
• Premium HSS-E material delivers outstanding wear resistance and toughness, making it suitable for drilling steel, aluminium, and stainless steel with consistent performance across multiple jobs.
• Long-series, straight shank built to DIN/ANSI standards ensures broad compatibility with common chucks and machines, while delivering dependable seating and repeatable hole location for extended reach projects.
• High-performance drilling with h10 tolerance maintains precise hole sizes even at higher speeds and feeds, reducing the need for secondary finishing passes and improving overall productivity.

In real-world scenarios, this drill shines when you need reliable long-hole capability in a single setup. Ideal for manufacturing shafts, fixtures, and through-holes in steel, aluminium components, and stainless steel hardware, the A940 stands up to repeated use in production or shop-floor environments without sacrificing accuracy or finish.

Practical tips for best results: set appropriate speeds and feeds for the target material, apply light lubrication to control heat buildup, and secure the workpiece firmly to minimize deflection. Let the parabolic flute evacuate chips efficiently, and avoid excessive lateral pressure to preserve hole geometry and the 7.80 mm diameter through the entire drill length.