Designed for precision-focused machinists, the Dormer Pramet C609 3/8 Inch HSS-E TiCN Roughing End Mill delivers reliable roughing performance in a compact, regular-length format. Built for shoulder, slot milling and ramping, it’s ideal for free machining and copper alloy work where toughness and wear resistance matter.

• Diameter: 3/8 in (9.525 mm)
• Flutes: 4
• Cutting Length (LOC): 3/4 in
• Overall Length: 2-1/2 in
• Shank: Weldon, 3/8 in
• Material & Coating: HSS-E (cobalt-based) with TiCN coating
• Coating: TiCN for enhanced wear resistance
• Helix Angle: 30°
• Profile: HR regular fine pitch
• Primary Applications: Shoulder milling, slot milling, and ramping
• Material Compatibility: Free machining and plain carbon steel; copper and copper alloys
• Standards: ANSI standard

This four-flute, regular-length end mill balances aggressive material removal with controlled finish. The TiCN coating reduces wear in tough steels and copper alloys, while the cobalt-based HSS-E substrate stands up to higher cutting temperatures often encountered in roughing operations. The 30° helix promotes efficient chip evacuation and smooth cutting action, helping maintain steady feeds and finishes during shoulder and slot milling. With a 3/4" length of cut and a 2-1/2" overall length, you gain practical reach without sacrificing rigidity, making it a dependable choice for free machining and standard carbon steels as well as copper alloys.