Dormer Pramet C50 20.0mm HSS-E Flatted Shank 2 Flute Ball Nosed Short Series Slot Drill DIN 327 D

The Dormer Pramet C50 20.0mm HSS-E Flatted Shank 2 Flute Ball Nosed Short Series Slot Drill is a precision end mill engineered for exact contouring and copy milling in challenging materials. Designed for professionals who require reliable performance in tight pockets and complex geometries, this compact tool delivers consistent, accurate results.

• Diameter: 20.0 mm ball-nose end mill for precise, curved cutting paths
• Length of cut: 22.0 mm optimized for controlled material removal along defined profiles
• Overall length: 88.0 mm with a short, rigid form to minimize deflection during fine finishing
• Reach / neck relief: 37.5 mm reach with neck relief to access recessed features without sacrificing rigidity
• Full profile radius: 10.0 mm radius for smooth transitions and gentle corner breaks
• Flutes: 2-flute geometry that balances chip clearance with surface finish
• Shank: Weldon 20 mm shank for secure clamping in standard holders
• Material / coating: HSS-E cobalt-based steel with bright finish for improved wear resistance and long tool life
• Helix angle: 30° for efficient chip evacuation and good surface finish
• Rake angle: 12° to aid cutting action in free-machining steel and copper alloys
• Standards: DIN 327 D, ensuring compatibility with compatible tooling systems
• Application: Specifically suited for copy milling in free-machining steel and copper or copper alloys

This tool is uniquely suited to reproducing complex shapes with high fidelity thanks to its ball-nose geometry and precise radii. The cobalt-based HSS-E composition delivers better red hardness and wear resistance under demanding cutting conditions, while the compact short series form minimizes vibration and chatter in delicate contouring work. The combination of 2 flutes, a 30° helix, and a 12° rake angle supports clean cuts, reduced built-up edge, and smoother finishes on both steel and copper alloys. Use it for mold components, intricate pockets, and any job requiring accurate parameter control and reliable repeatability.