The Dormer Pramet C601 11/16 x 1/2 Inch HSS Flatted Shank 2-Flute Slot Drill is a reliable regular-length end mill designed for shoulder milling, slot milling, and ramping in free machining steel. It’s built for machinists and job shops that need consistent performance with secure tool retention and clean, precise slots.

• Diameter: 11/16" (0.6875") for precise pocketing and slot work
• Flutes: 2 flutes, optimized for efficient chip evacuation in free machining steel
• Length of cut: 1 5/16" (33.3 mm), enabling deeper pockets with controlled engagement
• Overall length: 3.5" (88.9 mm), providing adequate reach for standard milling tasks
• Shank: Weldon-style flat shank, 1/2" (12.7 mm) to resist rotation and improve clamping security
• Material & finish: High-speed steel (HSS) with bright finish for durability and easy chip flow
• Helix angle: 30°, delivering smooth cutting and effective chip evacuation in steel
• Standards: ANSI regular-length geometry for dependable compatibility with common holders

This end mill’s 30° helix and compact two-flute design strike a balance between aggressive material removal and finishing capability on free machining steel. The flatted Shank reduces runout by providing a secure grip in end mill holders, while the Weldon shank enhances tool retention during heavy feeds. Ideal for pocketing, dadoing, and slotting, the C601 delivers consistent results across repeatable cycles, making it a dependable choice for automotive components, machinery housings, and general engineering applications where precise slots and shoulders are required.