The Dormer Pramet C273 is a long-reach, six-flute end mill engineered for shoulder milling and deep slot work in free machining and plain carbon steels, as well as copper and copper alloys. Built around a 30 mm diameter and a long cutting length, it delivers dependable performance in challenging pockets and profiles.

• Diameter: 30 mm
• Length of cut: 90 mm
• Overall length: 166 mm
• Reach with neck relief: 109.5 mm
• Shank: Weldon, 25 mm
• Material and finish: HSS-E powder metallurgical with bright finish
• Flutes: 6-flute configuration
• Helix angle: 30°
• Rake angle: 12°
• Standards: DIN 844 L
• Applications: Shoulder milling and slot milling
• Material suitability: Free-machining steel, plain carbon steel, copper and copper alloys

Designed for long reach without compromising rigidity, this end mill enables precise alignment in deep pockets and narrow slots. The 30° helix fosters efficient chip evacuation and smooth cutting action, while the 12° rake angle helps reduce cutting forces during shoulder milling. The 25 mm Weldon shank provides secure clamping for stable operation, minimizing tool deflection in demanding pockets. Powder-metallurgical HSS-E combines toughness with wear resistance, delivering reliable performance across materials and prolonging tool life, all finished with a bright surface finish to help reduce built-up edges and improve cleanup.