The Dormer Pramet C615 3/8 Inch HSS End Mill is a regular-length, four-flute cutting tool designed for precise shoulder milling, slot milling, and ramping in everyday machining tasks. With a stout 3/8" diameter and a Weldon-style shank, it delivers reliable performance in standard toolholders.

• Size and geometry: 3/8" diameter; 3/4" length of cut; 2-1/2" overall length; 4 flutes; regular-length end mill
• Shank type: 3/8" Weldon-style (flatted) shank for secure seating in standard holders
• Material and finish: High-speed steel (HSS) with bright finish for durability and smooth chip flow
• Helix angle: 30° helix designed to optimize cutting action, provide efficient chip evacuation, and improve surface finish
• ANSI standard: Complies with ANSI specifications for dependable interchangeability
• Recommended materials: Effective on free-machining and plain carbon steels as well as copper and copper alloys

This end mill offers consistent performance across common milling applications, delivering clean shoulders and accurate slots with reliable wear resistance in everyday steel and copper alloy workpieces. The combination of 4 flutes, a 30° helix, and a robust HSS core supports balanced material removal, good edge quality, and long tool life in typical shop environments.