The Dormer Pramet C602 5/16 Inch HSS two-flute end mill is a regular-length slot and keyway cutter designed for reliable, repeatable milling in free-machining steel. With a 5/16" diameter and 9/16" length of cut, it pairs precise geometry with a robust Weldon shank for secure toolholding in everyday machining tasks.

• Diameter: 5/16" (0.3125")
• Flutes: 2-flute design optimized for slot and keyway milling
• Length of Cut: 9/16" (0.5625")
• Overall Length: 2-1/2" (2.5")
• Shank: 3/8" Weldon shank for stable clamping and minimal runout
• Material & Finish: High-speed steel (HSS) with bright finish for durability and easy cleanup
• Helix: 30° geometry to promote smooth entry and effective chip evacuation
• Standards: ANSI-compliant for reliable interchangeability in standard milling setups
• Applications: Shoulder milling, slot milling, ramping, and keyway creation in free-machining steel

This end mill is built to deliver clean, accurate slots and keyways with consistent dimensions. The 30° helix minimizes tool deflection and enhances chip flow, helping you maintain steady feeds and finishes. The Weldon shank ensures secure mounting in collets or holders, reducing runout and improving repeatability on repetitive keyway milling tasks. Ideal for shops working with free-machining steel, it offers a dependable, cost-effective solution that complements standard milling setups and tooling inventories.