The cutter is widely used for milling steel, aluminum, copper and iron 2. Using high‑speed steel material, the product is very durable 3. Woodruff key seat cutter can facilitate CNC processing and improve work efficiency 4. The product possess straight handle, easy to use, very practical 5. T‑slot cutter with stable structure, excellent performance and long service life Specification: Item Type: Woodruff Key Seat Cutter Material: High speed steel System: Metric Handle Form: Straight shank Blade Width: Approx. 4mm / 0.2in Outer Circle Diameter: Approx. 16mm / 0.6in Shank Diameter: Approx. 10mm / 0.4in Package List: 1 x Woodruff Key Seat Cutter