The Dormer Pramet C247 5/16 Inch HSS-E Powder Metallurgical End Mill is a compact, versatile cutting tool designed for shoulder milling, slot milling, and ramping in free machining steels and copper alloys. Built for reliability in demanding shop environments, it combines durable construction with precise performance.

• Diameter: 5/16" (8.0 mm)
• Length of cut: 19 mm
• Overall length: 69 mm
• Shank: 10 mm Weldon shank for secure clamping
• Material: Powder metallurgical HSS-E with bright finish for improved wear resistance
• Flutes: 4-flute design for balanced material removal and finish
• Helix angle: 30° for efficient chip evacuation and stable cutting
• Rake angle: 12° to reduce cutting forces and enhance surface quality
• Standard: DIN 844 K compliant for reliable interchangeability
• Applications: Shoulder milling, slot milling and ramping in free machining and plain carbon steel, copper and copper alloys

This end mill is engineered to deliver consistent performance across multiple passes, providing smooth finishes and predictable tool life. The 4-flute geometry supports steady chip control, while the powder-metallurgical HSS-E composition offers enhanced hardness and wear resistance compared with traditional HSS, helping you achieve reliable results in tough materials. The Weldon shank ensures rigid, repeatable clamping in standard toolholders, minimizing runout and maintaining accuracy during deeper pockets and ramping operations. With DIN 844 K compatibility, you can rely on quick exchanges and proven compatibility with common milling setups.