Engineered for precision in free‑machining steels and copper alloys, the Dormer Pramet C247 3/8 Inch HSS‑E‑Powder Metal Flatted Shank End Mill is a four‑flute, standard‑length tool designed for shoulder milling, slot milling, and ramping. Its powder‑metallurgical HSS‑E core and bright finish deliver consistent performance across a range of milling tasks.

• Diameter: 3/8" (9.525 mm)
• Flutes: 4‑flute design for efficient chip evacuation and stable cutting
• Material: Powder‑metallurgical HSS‑E with bright finish for wear resistance
• Shank: Weldon (flatted) 10 mm for secure toolholding
• Length of cut (LOC): 22 mm
• Overall length: 72 mm
• Reach with neck relief: 31.5 mm
• Standard: DIN 844 K
• Helix angle: 30° for optimized chip formation
• Rake angle: 12° tailored for shoulder milling and ramping
• Applications: Shoulder milling, slot milling, and ramping in free machining and plain carbon steel and copper/copper alloys

This end mill delivers reliable, specific performance where rigidity and precise geometry matter most. The combination of a flatted Weldon 10 mm shank, 3/8" diameter, and a balanced 30° helix with a 12° rake supports clean finishes and predictable tool life in daily milling work, helping you achieve consistent pockets, smooth shoulders, and efficient material removal.