Dormer Pramet A940 7/64 Inch HSS-E HIGH PERF MULT-APP STRAIGHT SHANK LONG SERIES DRILL DIN/ANSI

Precision meets versatility in the Dormer Pramet A940 7/64 Inch HSS-E High Performance Multi-App Straight Shank Long Series Drill DIN/ANSI. Designed for demanding metalworking tasks, this drill delivers clean, accurate holes across a wide range of materials while maintaining dependable performance at higher speeds and feeds. The 7/64" diameter is ideal for pilot holes, precise drilling, and deep-hole work in a single pass, making it a go-to choice for fabrication, maintenance, and production environments.

Key features that drive real-world results

• 130-degree point for effortless starting and exceptional self-centering, reducing the push force required to begin a hole and minimizing wander on tough workpieces.
• Parabolic flute design engineered to evacuate chips efficiently, enabling extra-deep holes in a single pass and increasing productivity on long-hole operations.
• Bright finish minimizes built-up edge by reducing material sticking to the cutting edge, promoting smoother drilling and easier deburring.
• Premium HSS-E material (high-speed steel with cobalt) for superior hot hardness and wear resistance, suitable for drilling steel, aluminum, and stainless steel with reliable performance.
• Long series with straight shank offers deep-hole capability and broad compatibility with common drill chucks and CNC machines, ensuring consistent alignment and grip.
• DIN/ANSI compatibility provides dependable interchangeability with standard tool holders and machinery across shops and production lines.
• High tolerance potential designed to deliver stable hole sizes (H10 range under proper conditions), supporting accurate assemblies and repeatable results.

Ideal uses and practical benefits

This drill excels in scenarios that demand precision and depth without sacrificing speed. It’s well-suited for:

• Fabrication and sheet-metal work where clean, accurate holes are essential for fasteners and alignment pins.
• Maintenance and repair tasks involving steel, cast iron, aluminum, and stainless components where hole accuracy matters for fit and function.
• Prototype and product development that require reliable hole quality during rapid iteration.
• Deep-hole drilling challenges where a conventional short drill would require multiple passes or risk wandering.

How this drill stands apart from the basics

Unlike standard drills, the A940’s 130-degree point, parabolic flute, and cobalt-enhanced alloy combine to deliver:

• Better starting accuracy and reduced delamination or wandering on initial contact.
• Improved chip evacuation and hole depth capability, minimizing noise, heat, and re-drilling needs.
• Resilience across a spectrum of materials, reducing tool changes and downtime in mixed-material workflows.

Pro tips for optimal performance

• Match speeds and feeds to the material and drill diameter, starting conservatively and increasing as you confirm stable cutting conditions.
• Keep the workpiece well-lubricated for steel and stainless drilling to extend tool life and improve finish quality.
• Use clamping and proper workholding to maintain consistent alignment, especially when drilling long holes with a straight-shank drill.
• Inspect the hole diameter and surface finish after each significant pass to ensure you stay within the desired tolerance range.