... etc, 3. multi-cut geometry for ply-cutting and lo drill bit1. Weldon shank, with more stable clamping for stable cutting ... , depth of cut from25mm, 35mm, 50mm, 75mm and 100mm.6. Special multi-cut geometry with ply-cutting and lower friction to ... component, such as steel structure project, railway traffic, bridging, shipbuilding, machine manufacture, aviation and spaceflight.