The Dormer Pramet C618 1/8 Inch HSS‑E Flatted Shank 4‑Flute End Mill is a reliable, regular‑length cutter designed for precise pocketing, shoulder milling, and slot work in steel and copper alloys. Built on a cobalt‑based HSS‑E core with a bright finish and a flatted 3/8" Weldon shank, it delivers steady performance in everyday milling tasks.

• Diameter: 1/8" (0.125").
• Length of Cut: 3/8" (0.375").
• Overall Length: 2-5/16" (2.3125").
• Shank: 3/8" Weldon shank with a flat for improved grip and seating.
• Material: HSS‑E cobalt‑based steel with a bright finish for wear resistance at higher temperatures.
• Flutes: 4 flutes for efficient chip evacuation and a strong cutting edge.
• Helix: 30° helix for smooth cutting action and better surface finish.
• Regular length: ANSI standard length suitable for versatile milling applications.
• Applications: Shoulder milling, slot milling, and ramping in free machining and plain carbon steel and copper/copper alloys.

This end mill is engineered to deliver consistent, clean pockets and slots with stable tool life in common shop materials. The cobalt‑enhanced HSS‑E construction provides improved hardness and wear resistance under cutting temperatures, while the 4‑flute geometry balances strength and chip clearance. The flatted shank ensures secure engagement in collets and holders, making it a dependable choice for routine milling tasks in steel and copper alloys.