The Dormer Pramet C247 1/8" HSS-E Powder Metallurgy End Mill is a compact, four-flute cutter designed for shoulder milling, slot milling, and ramping in free-machining steels and copper alloys. Built for reliability in everyday machining, it delivers consistent performance across small-diameter tasks.

• Diameter: 1/8" (3.175 mm)
• Flutes: 4-flute design for efficient chip evacuation and stable cutting
• Cutting Length: 10 mm length of cut
• Overall Length: 54 mm
• Shank: 6 mm Weldon shank for secure clamping
• Material: Powder-metallurgy HSS-E with bright finish for improved hardness and wear resistance
• Helix: 30° helix to promote smooth chip flow
• Rake Angle: 12° rake to enhance cutting action on shoulders
• Standard: DIN 844 K tolerance and fit
• Applications: Shoulder milling, slot milling, and ramping
• Compatible Materials: Free-machining and plain carbon steel, copper and copper alloys

Equipped with powder-metallurgy HSS-E and a bright finish, this end mill combines toughness with wear resistance for longer tool life in demanding jobs. The 6 mm Weldon shank provides secure, repeatable seating, while the 30° helix and 12° rake optimize cutting dynamics—helping reduce chatter, improve surface finish, and minimize burr formation on both steel and copper-based materials. Ideal for precision milling tasks in small-diameter workflows, it helps machinists achieve consistent results in pocketing, light shoulder milling, and intricate slotting operations.