Durable Woodruff cutter designed for precise keyway milling in steel and alloy workpieces. The Dormer Pramet C822 is built for machinists and shops that require reliable performance in small-diameter keyways.

• Diameter: 28.5 mm
• Width of cut: 10 mm
• Overall length: 71 mm
• DIN standard: DIN 850
• Combi shank: 12 mm with Weldon flat and thread
• Material: HSS‑E cobalt-based with bright finish
• Teeth: 12-tooth Woodruff cutter
• Helix and rake: 10° helix, 10° rake angle
• Intended use: Keyway milling in steel, stainless steel, cast iron, and non-ferrous metals

Designed for reliable keyway milling, the cobalt-based HSS‑E alloy enhances wear resistance and tool life when cutting through tough materials. The combi shank with Weldon flat and threaded section ensures secure clamping and accurate depth control, reducing runout for cleaner slots. With a 10° helix and 10° rake, the cutter promotes smooth chip flow and a high-quality finish, minimizing burr formation in precision keyways. This tool is ideal for production environments and machining tasks that require consistent geometry in shafts, gears, and other keyway-bearing components.