The Dormer Pramet C614 5/16 inch HSS double-ended end mill is built for precise, reliable milling in free machining and plain carbon steels, as well as copper alloys. Its regular-length design and four-flute geometry deliver consistent chip control and surfaces across shoulder, slot milling, and ramping tasks.

• Diameter: 5/16" (0.3125")
• Flutes: 4-flute configuration for efficient material removal and smooth cutting action
• Length of Cut: 3/4" (0.75") reach for shallow to mid-depth milling
• Overall Length: 3-1/2" (3.5")
• Shank: 3/8" Weldon shank with flatted section for positive drive
• Material & Finish: High-Speed Steel (HSS) with bright finish for durability and easy chip flow
• Helix Angle: 30° to balance chip evacuation and surface finish
• End Mill Type: Double-ended, regular-length end mill to maximize tool life
• ANSI Standard: Conforms to ANSI tool dimensions
• Applications: Shoulder milling, slot milling, and ramping
• Materials Recommended: Free machining steel, plain carbon steel, copper and copper alloys

Designed for practitioners who need dependable performance in everyday milling workloads, this end mill delivers steady cutting action, predictable feeds, and clean edges. The combination of a stout Weldon shank, a 30° helix, and a four-flute geometry helps manage chip load and heat, reducing dwell time and improving cycle efficiency. Double-ended design means you can extend tool life by flipping ends when one becomes dull, while maintaining consistent results across multiple passes. Ideal for shop floors and production environments where precision and repeatability matter, it stands up to standard milling ops in common metals and alloys.