Engineered for precise metal removal, the Dormer Pramet C273 11.0mm HSS-E-Powder Metallurgical End Mill is built for shoulder and slot milling in free‑machining steels and copper alloys. With an 11 mm diameter, 4 flutes, and a long-series geometry, it delivers reliable deep-cut performance through demanding workpieces.

• Diameter: 11 mm
• Flutes: 4-flute design for efficient chip evacuation and smooth cutting
• Length of cut: 45 mm
• Overall length: 102 mm
• Shank: Weldon 12 mm for secure, repeatable clamping
• Material: HSS-E, powder-metallurgical construction for enhanced hardness and wear resistance
• Finish: Bright finish to aid chip flow and reduce galling
• Helix angle: 30° steering chip flow for better evacuation in metallic workpieces
• Rake angle: 12° to optimize cutting forces and chip formation
• Standard: DIN 844 L for interchangeability and compatibility with compatible holders
• Applications: Shoulder milling and slot milling in free machining steel and copper alloys
• Recommended materials: Free machining steel, plain carbon steel, copper and copper alloys

The 4-flute configuration combined with a 30° helix strengthens chip control and surface finish during deeper pockets and shoulder sections. Powder‑metallurgical HSS‑E provides a balance of hardness, toughness, and wear resistance, helping extend tool life under high-feed milling. The long-series design delivers extended reach without compromising stability, making it well-suited for challenging pockets and slots. The Weldon shank ensures precise alignment and repeatable clamping, reducing runout and improving part accuracy in production settings. This end mill is a practical choice for shops seeking dependable performance on steel and copper-based materials with consistent results across multiple passes.