The Dormer Pramet C822 Woodruff Cutter is a precision HSS-E milling tool designed for reliable keyway milling in steel and other metals. Built for machinists and precision workshops, it combines a cobalt-based substrate with a robust 10 mm combi shank for secure, accurate cuts.

• Model: C822
• Diameter: 16.5 mm
• Width of cut: 5 mm
• Overall length: 56 mm
• Teeth: 8
• Shank: 10 mm combi shank with Weldon flat and thread
• Material: Cobalt-based HSS-E with bright finish
• Helix angle: 10°
• Rake angle: 10°
• DIN standard: DIN 850
• Application: Keyway milling in steel, cast steel, stainless steel, cast iron, non-ferrous metals, and high-temperature alloys

With eight cutting teeth and a 10° helix, this cutter delivers clean, accurate keyways with minimal burrs and stable chip formation, even in tougher materials. The cobalt-rich HSS-E substrate enhances wear resistance and hot hardness, extending tool life in demanding environments. The Weldon-flat, threaded shank provides secure seating in compatible holders, reducing runout and chatter for repeatable results. Meeting the DIN 850 standard ensures broad machine compatibility, making it a dependable choice for automotive, gear, and precision-component manufacturing. Its compact 16.5 mm diameter and 5 mm width of cut strike a practical balance between material removal and precision for everyday keyway production.