Engineered for demanding roughing tasks, the Dormer Pramet C40 18.0mm HSS-E end mill excels at shoulder and slot milling in free‑machining steels and copper alloys. Its 4-flute NF flat coarse pitch geometry delivers aggressive material removal with reliable stability.

• Diameter: 18 mm
• Flutes: 4-flute roughing geometry
• Shank: Weldon Ø16 mm with flat/profile
• Length of Cut (DOC): 32 mm
• Overall Length: 92 mm
• Reach / Neck Relief: 43.5 mm
• Material & Finish: Cobalt-based HSS‑E with bright finish
• Helix & Rake: 30° helix, 12° rake angle for stable cutting and shoulder accuracy
• Profile: NF flat coarse pitch
• DIN Standard: DIN 844 K
• Applications: Shoulder milling, slot milling, and ramping
• Materials suited: Free machining steel, plain carbon steel, copper and copper alloys

This end mill combines robust edge retention with precise geometry to maximize material removal while maintaining control in deep pockets and tight radii. The Weldon shank ensures secure clamping for reduced runout, while the 43.5 mm neck relief provides access to deeper features without compromising rigidity. Ideal for shops that demand dependable roughing performance on common engineering materials.