The Dormer Pramet C40 16.0 mm HSS-E flatted shank multi-flute roughing end mill is built for efficient material removal in free-machining steels and copper alloys. Designed for shoulder milling, slot milling, and ramping, it combines a robust early-rig geometry with dependable DIN 844 K compliance.

• Diameter: 16 mm
• Flutes and profile: 4-flute NF flat coarse pitch roughing end mill
• Length of cut: 32 mm
• Overall length: 92 mm
• Reach with neck relief: 43.5 mm
• Shank: Weldon 16 mm, DIN 844 K standard
• Material and finish: Cobalt-based HSS-E with bright finish
• Helix and rake: 30° helix, 12° rake angle for shoulder milling and ramping
• Applications: Shoulder milling, slot milling, and ramping in free machining steel and copper/copper alloys

This end mill delivers reliable roughing performance with strong edge wear resistance thanks to its cobalt-based HSS-E composition. The 4-flute configuration provides steady chip evacuation and efficient material removal, while the Weldon shank ensures secure clamping for high-feed milling. The geometry is well-suited to free machining and copper alloys, helping you achieve consistent tool life and predictable cycle times in production environments.