Meet a reliable, high-precision end mill built for shoulder milling, slot milling, and ramping in free‑machining and plain carbon steels, as well as copper alloys. The Dormer Pramet C618 3/16" HSS‑E Flatted Shank 4‑Flute End Mill, Regular Length, delivers consistent performance with a tough cobalt‑based substrate.

• Diameter: 3/16" end mill for precise pocketing and slot work
• Flutes: 4‑flute geometry for efficient chip evacuation and stable cutting
• Length of Cut: 1/2" LOC to handle moderate depth pockets and slots
• Overall Length: 2.3" for versatile reach in compact setups
• Shank: 3/8" Weldon shank with a flat (flatted) section for secure seating in toolholders
• Material: HSS‑E cobalt‑based steel with bright finish for enhanced wear resistance
• Helix Angle: 30° designed to optimize shoulder milling, slot milling, and ramping
• Standards: ANSI‑standard end mill for reliable interchangeability
• Applications: Ideal for free machining steels, plain carbon steels, copper, and copper alloys

This end mill is engineered to deliver predictable performance across common machining tasks. The 30° helix promotes efficient material penetration and helps reduce cutting forces during shoulder and slot operations, while the cobalt‑based HSS‑E core provides better wear resistance and hot hardness in tougher materials. The flatted shank ensures a confident, repeatable grip in collets and end‑mill holders, minimizing slipping and chatter during long cuts. Perfect for shop floors that demand consistent finishes and reliable tool life without frequent tool changes.