Meet the Dormer Pramet C273 14.0mm HSS-E powder-metallurgical end mill—a long-series tool built for shoulder and slot milling in free-machining steels and copper alloys. With extended reach and a robust Weldon shank, it delivers reliable performance in deep-pocket and long-slot applications.

• Diameter: 14.0 mm
• Flutes: 4
• Length of cut (LoC): 53 mm
• Overall length: 110 mm
• Reach with neck relief: 64.5 mm
• Shank: 12 mm Weldon
• Material: HSS-E, powder-metallurgical with bright finish
• Helix angle: 30°
• Rake angle: 12°
• DIN standard: 844 L
• Applications: Shoulder milling and slot milling in free-machining steel and copper/copper alloys

The 4-flute geometry and 30° helix are optimized to balance cutting efficiency and chip evacuation, enabling smooth, consistent pockets and slots without sacrificing rigidity. The powder-metallurgical HSS-E substrate improves hardness and wear resistance, helping this tool maintain sharpness through extended milling cycles in demanding materials. The bright finish reduces built-up edge under typical shop conditions, while the 12° rake angle supports controlled cutting action during shoulder and slot operations. Designed to DIN 844 L, the tool fits standard holders and fixtures for smooth integration into existing setups. This long-series end mill is particularly effective for deep-pocket work and longer reach tasks where tool stability matters as metal removal drives productivity.