The Dormer Pramet C948 is a long-series roughing end mill designed for productive shoulder and slot milling in steels and high-temperature alloys. Built for reliability with a powder-metallurgical HSS-E substrate, Alcrona coating, NRA asymmetrical coarse-pitch geometry, and a 16 mm Weldon shank, it handles deep milling tasks with confidence.

• Diameter: 18.00 mm
• Flutes: 4
• Profile: NRA asymmetrical coarse-pitch
• Length of cut: 63 mm
• Overall length: 123 mm
• Reach / neck relief: 74.5 mm
• Shank: Weldon, 16 mm
• Material & coating: Powder-metallurgical HSS-E with Alcrona coating
• Helix angle: 35°
• Rake angle: 12°
• Standard: DIN 844 L
• Applications: Shoulder milling and slot milling
• Material compatibility: Plain carbon and alloy steels, tool steel, stainless steel, cast iron, copper and copper alloys, and high-temperature alloys

The tool is designed to deliver steady material removal and reliable wear life. The NRA geometry helps break chips efficiently in deep cavities, while the Alcrona coating reduces friction and extends tool life under high loads. The combination of powder-metallurgical HSS-E substrate and a robust 4-flute design provides a balanced blend of aggressive cutting and controlled finishing, making it well-suited for high-volume production environments or precision-heavy components alike. The 35° helix and 12° rake angle further support effective shoulder milling and slot milling in a wide range of steels and alloys, with DIN 844 L compatibility ensuring secure integration into standard tooling systems.