The Dormer Pramet C601 13/16 x 5/8 Inch HSS Flatted Shank 2-Flute Slot Drill is a precision end mill crafted for shoulder milling, slot milling, and ramping in free‑machining steel. Designed for machinists who need reliable, repeatable performance in regular-length applications, it pairs a robust HSS core with a secure flatted (Weldon) shank for confident tool control.

• Diameter: 13/16" (0.8125") cutting diameter for consistent slot and shoulder work
• Length of cut: 1.5" (38.1 mm) to reach into pockets while maintaining rigidity
• Overall length: 4" (102 mm) for flexible reach in various setups
• Shank: 5/8" Weldon shank with a flat for positive drive and stable clamping
• Flutes: 2 flutes optimized for efficient chip evacuation and a clean finish
• Material & finish: High-speed steel (HSS) with bright finish for durability and smooth cutting
• Helix angle: 30° helix enhances entry, reduces cutting forces, and improves surface finish
• Standards: ANSI-standard dimensions for broad compatibility with standard holders
• Applications: Specifically suited for shoulder milling, slot milling, and ramping in free-machining steel

With its two-flute geometry and medium helix, this slot drill delivers efficient material removal in easily machined steels, while maintaining precise control through shoulders and slots. The 5/8" Weldon shank provides a secure, repeatable grip in common milling holders, ensuring consistent alignment and minimal runout. The ANSI-compliant dimensions mean straightforward integration into existing tooling setups, making it a dependable choice for job shops and production milling alike. For tasks that require clean slots, accurate shoulders, and smooth ramping paths in free-machining steel, the C601 end mill offers a dependable, purpose-built solution.