Dormer Pramet C407 9.0mm HSS-E-Powder Metal Primax Flatted Shank Multi-Flute Roughing (NRA) Standard Length End Mill DIN 844 K

The Dormer Pramet C407 is a 9.0 mm diameter roughing end mill designed for serious material removal in steels, stainless steels, cast iron, and copper alloys. Built for shoulder milling, slot milling, and ramping, it delivers dependable performance in demanding machining environments.

• Diameter: 9.0 mm
• Length of cut: 19 mm
• Overall length: 69 mm
• Flutes: 4-flute design for efficient material removal
• Shank: Weldon flat, 10 mm
• Material: Powder-metallurgical HSS-E with bright finish
• Coating/finish: Bright finish for reduced built-up edge
• Profile: NRA asymmetrical coarse pitch
• Helix angle: 35°
• Rake angle: 12°
• Standard: DIN 844 K
• Applications: Shoulder milling, slot milling, and ramping

In practice, the NRA asymmetrical coarse pitch and four-flute geometry enable steady material removal with controlled chatter, even in tough alloys. The powder-metallurgical HSS-E composition enhances wear resistance and toughness, extending life in challenging materials while maintaining a bright finish that helps minimize built-up edges. The 10 mm Weldon shank provides a secure, repeatable clamping interface for reliable performance in production setups. This end mill is well-suited for engineers and machinists tackling pockets, slots, and ramps in steel, ferritic and martensitic stainless steels, duplex stainless steels, cast iron, copper and copper alloys, and high-temperature alloys.