Dormer Pramet A940 4.60 mm HSS-E HIGH PERF MULT-APP STRAIGHT SHANK LONG SERIES DRILL DIN/ANSI

Introducing the Dormer Pramet A940 4.60 mm HSS-E High Perf Multi-App Straight Shank Long Series Drill (DIN/ANSI) — a precision drilling solution built for reliability, depth, and consistent hole quality in a range of metals.

Why this drill stands out

• 130° point for self-centering and easier entry — starts cuts cleanly with reduced push force, helping to prevent wandering and ensuring a true, accurate initial hole.
• Bright finish to minimize sticking — the tension between the workpiece and the cutting edge is reduced, so chips shed more smoothly and the edge stays sharper longer.
• Parabolic flute design for deep-hole capability — engineered to evacuate chips efficiently, enabling deeper holes in a single pass without compromising hole quality.
• Premium HSS-E material for versatile performance — designed to drill a variety of materials, including steel, aluminum, and stainless steel, with improved wear resistance and longer life under demanding speeds and feeds.
• Long-series, straight-shank for universal compatibility — fits a wide range of chucks and holders, making it a dependable choice for production setups and multi-material projects.
• High-precision output with H10 tolerance — delivers consistently accurate hole diameters even at higher speeds and feeds, reducing rework and improving downstream assembly.

Ideal applications

Perfect for fabrication shops, machine rooms, and job sites where dependable, repeatable drilling is essential. Use the A940 4.60 mm drill for:

• Deep-hole drilling in mild steel, alloy steel, and aluminum components without frequent tool changes
• Through-holes in stainless steel where edge integrity matters
• Multi-material assemblies requiring consistent hole size across diverse workpieces

How it improves your workflow

• Reduces setup time with a self-centering tip that minimizes wandering during entry
• Lowers chip buildup and burr formation due to chip-friendly flute geometry
• Maintains edge life longer in high-speed applications thanks to HSS-E chemistry
• Delivers reliable hole quality at higher speeds and feeds, minimizing downstream rework

Practical tips for best results

• Match spindle speed and feed rate to the material: aluminum and softer steels respond well to moderate speeds with steady feeds; stainless steel benefits from controlled feeds to prevent overheating.
• Use light, steady pecking to clear chips when drilling deep holes, even though the parabolic flute is optimized for depth.
• Maintain adequate lubrication or coolant for extended tool life and to preserve edge sharpness.
• Center-punch and pilot if needed to maximize start accuracy, then drill to full depth with minimal lateral load.

When you require a dependable, high-performance drill that thrives across multiple materials and reaches deeper in a single pass, the Dormer Pramet A940 4.60 mm HSS-E Multi-App Straight Shank Long Series Drill is built to deliver precise, repeatable holes with less effort and fewer interruptions.