Engineered for deep milling tasks, the Dormer Pramet C273 3/8 Inch HSS-E-Powder Metallurgical End Mill is a long-series, four-flute tool designed for shoulder and slot milling in free‑machining steels and copper alloys.

• Diameter: 3/8" (9.525 mm)
• Material: Powder Metallurgical HSS-E with bright finish for improved wear resistance and toughness
• Flutes: 4-flute configuration for efficient chip evacuation and smooth cutting
• Length of Cut: 45 mm, offering solid reach for deeper pockets
• Overall Length: 95 mm with neck relief to reduce interference during deep cuts
• Reach / Neck Relief: 54.5 mm reach with neck relief to maintain rigidity while accessing tight features
• Shank: 10 mm Weldon shank for secure clamping in collets and holders
• Standard: DIN 844 L, ensuring compatibility with a wide range of holders and machines
• Helix and Rake: 30° helix and 12° rake angle optimized for shoulder milling and slot milling
• Applications: Suitable for free-machining and plain carbon steel as well as copper and copper alloys

This end mill delivers predictable performance in both CNC and manual milling setups. The powder-metallurgical HSS-E construction enhances edge retention and toughness, while the long-series geometry provides extended reach without sacrificing rigidity. The 30° helix supports efficient material removal and smoother finishes, making it a reliable choice for demanding shoulder and slot milling tasks in common engineering materials.