The Dormer Pramet C247 8.5mm HSS-E powder metallurgical end mill is a compact, high-performance cutting tool designed for shoulder milling, slot milling and ramping in free machining steel and copper alloys. Built with advanced HSS-E powder metallurgy and a 10 mm Weldon (flat) shank, it delivers reliable, precise cuts in a standard-length body.

• Diameter: 8.5 mm
• Flutes: 4-flute design for efficient chip evacuation and smooth cutting
• Length of Cut: 19 mm
• Overall Length: 69 mm
• Shank: 10 mm Weldon shank (flat shank) for secure clamping
• Material & Finish: Powder metallurgical HSS-E with bright finish for wear resistance
• Helix: 30° helix for effective chip formation
• Rake Angle: 12° optimized for shoulder milling, slot milling and ramping
• Standard: DIN 844 K compliant
• Applications: Shoulder milling, slot milling and ramping in free machining and plain carbon steel and copper or copper alloys

Designed to minimize deflection and maintain tight tolerances, this tool shines in pocketing, contouring and feature-milling tasks. The 4-flute configuration offers steady chip control and a smooth surface finish, while the 30° helix and 12° rake enable efficient cutting action even in tougher materials. The 10 mm Weldon shank provides a robust, repeatable grip in common collets, making it a dependable choice for production runs and job-site milling. With its DIN 844 K specification and bright, wear-resistant surface, the C247 end mill is well-suited for everyday milling work on free machining steels and copper alloys, delivering consistent performance and long tool life.