The Dormer Pramet C273 1/2" HSS-E powder metallurgical end mill is built for deep-pocket and shoulder milling, delivering consistent performance in free‑machining steels and copper alloys.

• Diameter: 1/2" (12.7 mm)
• Flutes: 4-flute configuration for efficient chip evacuation and stable cutting
• Length details: 53 mm length of cut (LOC); 110 mm overall length; 64.5 mm reach with neck relief
• Shank: 12 mm Weldon shank for secure clamping and repeatable seating
• Material & finish: Powder-metallurgical HSS‑E with bright finish for improved wear resistance and smooth cutting action
• Helix & rake: 30° helix with 12° rake angle tailored for shoulder and slot milling
• Standard: DIN 844 L compatibility for reliable fit in standard holders
• Applications: Shoulder milling and slot milling in free machining and plain carbon steel and copper or copper alloys

This long-series end mill is designed to reach deep into pockets and narrow slots without sacrificing rigidity. The powder-metallurgical HSS‑E construction provides a tougher cutting edge and longer tool life under typical milling conditions, while the bright finish helps minimize built-up edge and promotes smoother chip flow. A Weldon shank ensures secure engagement in the tool holder, enabling steady performance during demanding material-removal cycles.