square type long shank, 2 flutes carbide cutter HRC: 55, D6-D12 mm, helix angle: 35, 2/4 flute, long shank, middle to high speed. (OrderNo) Cutting Flute Shank A.0.L d l D L 6.0×16×6D×75L×2F 6 16 6 75 6.0×16×6D×100L×2F 6 16 6 100 8.0×20×8D×75L×2F 8 20 8 75 8.0×20×8D×100L×2F 8 20 8 100 10×25×10D×100L×2F 10 25 10 100 10×25×10D×150L×2F 10 25 10 150 12×30×12D×100L×2F 12 30 12 100 12×30×12D×150L×2F 12 30 12 150