The Dormer Pramet C609 3/4" HSS-E TiCN Roughing End Mill (Regular Length) is built for robust material removal in steel and copper alloys. With a Weldon 3/4" shank and a 30° helix, this 4-flute tool excels at shoulder milling, slot milling, and ramping tasks.

• Diameter: 3/4" (19.05 mm)
• Flutes: 4
• Overall length: 3.875" (98.4 mm)
• Length of cut: 1.625" (41.3 mm)
• Shank: Weldon 3/4" (19.05 mm)
• Material & coating: HSS-E cobalt-based substrate with TiCN coating
• Helix: 30°
• Profile: HR regular fine pitch
• Applications: Shoulder milling, slot milling, ramping
• Material compatibility: Suitable for free machining and plain carbon steel and copper or copper alloys
• Standard: ANSI

The combination of a cobalt-based HSS-E core and TiCN coating delivers improved wear resistance and hotter-hardness performance, extending tool life in demanding roughing operations. The 30° helix enhances chip evacuation and reduces cutting forces, which helps maintain stability during aggressive material removal. With its 4-flute geometry, the tool achieves a balanced balance between high material removal rates and controlled chip control, making it a reliable first-pass option in pockets, slots, and shoulders. The Weldon shank provides a secure, true grip in collets and holders, minimizing runout and improving precision across multiple passes. Ideal for workpieces in free machining steels and copper alloys, this end mill supports efficient roughing workflows and sets the stage for subsequent finishing passes.