The Dormer Pramet C50 4.0mm HSS-E Flatted Shank 2 Flute Ball Nose End Mill is a compact, high-precision cutter designed for tight spaces. Built for copy milling in free-machining steel and copper alloys, it delivers consistent, accurate rounded profiles with reliability.

• Diameter: 4.0 mm with 7 mm length of cut
• Overall length: 51 mm
• Radius: 2.0 mm full profile radius
• Shank: 6 mm Weldon shank with a flatted section for secure seating
• Material: cobalt-based HSS-E with bright finish for enhanced wear resistance
• Flutes: 2-flute ball-nose design for smooth 3D contouring
• Helix angle: 30° for efficient chip evacuation in softer metals and steels
• Rake angle: 12° to support stable cutting in various alloys
• Standard: DIN 327 D
• Series: Extra-short length optimized for confined slots and pockets
• Applications: Copy milling and 3D contouring in free-machining steel and copper/copper alloys

Designed to translate master profiles into precise, repeatable geometries, this end mill excels at creating tight radii and smooth transitions. The 2-flute configuration reduces load per flute for steady finishing passes, while the cobalt-enriched HSS-E construction withstands the heat and wear of continuous copying tasks. The Weldon shank and flatted section ensure secure, vibration-free operation in small machine setups, making it a dependable choice for intricate pocketing, filleting, and profiling in hard-to-reach areas.