Dormer Pramet C822 16.5mm x 4.mm HSS-E Screwed Shank Woodruff Cutter DIN 850

The Dormer Pramet C822 Woodruff Cutter is a cobalt-based HSS‑E keyway milling tool designed for reliable, precise Woodruff keyways in steel and a range of metals. This 16.5 mm diameter cutter combines durability and accuracy in a compact form, suitable for professional workshops and machine shops. It features a 4 mm width of cut, 56 mm overall length, and a 10 mm combi shank with Weldon flat and thread for secure mounting.

• Diameter: 16.5 mm
• Width of cut: 4 mm
• Overall length: 56 mm
• Teeth: 8
• DIN standard: DIN 850
• Shank: 10 mm combi shank with Weldon flat and threaded portion
• Material: Cobalt-based HSS‑E
• Finish: Bright finish
• Helix angle: 10°
• Rake angle: 10°
• Applications: Keyway milling in steel, stainless steel, cast steel, cast iron, non-ferrous metals and high-temperature alloys

The 8‑tooth geometry supports efficient material removal while delivering a consistent, precise keyway profile. The 10° helix and 10° rake angle optimize cutting action and chip control, helping to minimize burrs and improve surface finish on shafts and gears. A Weldon flat with threaded shank provides secure clamping in compatible toolholders, enhancing stability during high‑speed milling. Built for durability in a variety of metals—from conventional steels to high‑temperature alloys—the C822 is a reliable choice for precision keyway milling in demanding production environments.