The Dormer Pramet C273 is a 22 mm diameter long-series end mill designed for shoulder and slot milling in free‑machining and plain carbon steels as well as copper alloys. With its extended reach and robust HSS‑E powder metallurgy core, it delivers reliable performance on deep pockets and tight radii.

• Diameter: 22.0 mm
• Flutes: 5
• Length of cut: 75 mm
• Overall length: 141 mm
• Reach with neck relief: 90.5 mm
• Shank: Weldon, 20 mm
• Material: HSS‑E powder metallurgy (PM‑HSS)
• Finish: Bright finish
• Helix: 30°
• Rake angle: 12°
• DIN standard: DIN 844 L
• Applications: Shoulder milling and slot milling in free‑machining and plain carbon steel and copper alloys

Equipped with a five‑flute geometry and a bright, wear‑resistant finish, this tool maintains stable cutting performance across long reach operations. The 30° helix promotes efficient chip evacuation and a smooth cutting action, while the 12° rake angle supports effective shoulder milling in mid‑to‑heavy engagement. The Weldon 20 mm shank provides secure clamping and minimizes runout, enabling precise milling in deep pockets and complex contours. Designed for durability in free‑machining steels and copper families, the C273 balances rigidity, reach, and versatility for demanding milling tasks.