The Dormer Pramet C40 10.0mm HSS-E Flatted Shank Multi-Flute Roughing (NF) End Mill is a precision roughing tool designed for shoulder milling, slot milling, and ramping in free machining and copper alloys. Built for reliable performance in standard DIN 844 K holders, it pairs a robust Weldon shank with a four-flute NF profile to deliver steady material removal and consistent results.

• Diameter: 10.0 mm
• Number of Flutes: 4
• Length of Cut (LOC): 22 mm
• Overall Length: 72 mm
• Shank: Weldon, 10 mm
• Material: HSS-E cobalt-based with bright finish
• Profile: NF flat coarse pitch
• Helix angle: 30°
• Rake angle: 12°
• DIN standard: DIN 844 K
• Applications: Shoulder milling, slot milling, and ramping
• Material compatibility: Free machining and plain carbon steel, copper or copper alloys

This end mill is optimized for efficient roughing, balancing material removal with tool life. The 30° helix and 12° rake support smooth entry and consistent chip evacuation, while the cobalt-based HSS-E construction enhances wear resistance for longer service in demanding milling work. The 10 mm Weldon shank ensures secure clamping and precise positioning in DIN 844 K tool holders, making it a dependable choice for high‑throughput roughing in common engineering materials, including copper alloys.