Dormer Pramet C505 12.0mm HSS-E Flatted Shank 2 Flute Ball Nosed Standard Length Slot Drill DIN 844 K

The Dormer Pramet C505 12.0 mm HSS-E ball-nose end mill is purpose-built for precise 3D contouring and copy milling in steel and copper alloys. Designed for machinists who demand dependable performance, it pairs a robust Weldon shank with a cobalt-based HSS-E body for consistent results across challenging materials.

• Diameter: 12.0 mm
• Flutes: 2 flute design for efficient chip evacuation
• End Mill Type: Ball-nose geometry to produce smooth, rounded contours
• Radius: 6 mm full profile radius
• Length of Cut: 26 mm
• Overall Length: 83 mm
• Shank: 12 mm Weldon shank (flatted) for secure clamping
• Material: Cobalt-based HSS-E with bright finish for enhanced wear resistance
• Helix/Rake Angles: 30° helix and 12° rake for efficient cutting and chip control
• DIN Standard: DIN 844 K

This combination delivers reliable tool life and precise material removal in copy milling applications, enabling clean radii and consistent surface finishes on free-machining steel and copper alloys. The 6 mm ball-nose radius minimizes tool marks on complex geometries, while the cobalt-based HSS-E construction provides improved wear resistance and heat tolerance during extended cuts. The Weldon shank ensures stable, repeatable clamping, reducing runout and vibration for tight tolerances in pocketing, profiling, and contouring tasks.