The Dormer Pramet C601 9/16 x 1/2 Inch HSS Flatted Shank 2-Flute Slot Drill is a regular-length end mill built for shoulder milling, slot milling, and ramping in free-machining steel. Designed for reliability in both CNC and manual machines, it combines a sturdy Weldon shank with efficient two-flute geometry for steady cutting performance.

• Diameter: 9/16" (0.5625")
• Length of cut: 1-1/8" (28.6 mm)
• Overall length: 3-3/8" (85.7 mm)
• Shank: 1/2" Weldon shank for secure seating in collets or chucks
• Material / finish: High-Speed Steel (HSS) with bright finish
• Flutes: 2-flute design for efficient chip evacuation and finish
• Helix angle: 30° to optimize cutting action and surface quality
• Applications: Shoulder milling, slot milling, and ramping in free-machining steel
• Standard: ANSI standard geometry for broad compatibility
• Brand / model: Dormer Pramet C601

This end mill delivers practical, predictable performance for everyday milling tasks. The two-flute configuration provides solid material engagement with good chip clearance, while the 30° helix promotes smooth entry and steady cutting action. The flatted Weldon shank minimizes tool runout and ensures a secure grip in standard tool holders, making it a dependable choice for preparing slots, shoulders, and shallow pockets in free-machining steel. Ideal for shops seeking a balance of reach, rigidity, and versatility in a single cutting tool.