... . 5. The specifications from the Φ12mm to Φ65mm, depth of cut from25mm, 35mm, 50mm, 75mm and 100mm.6. Special multi ... its life is lengthened. It is stable made and can cut with high speed, and make the surface of materials smooth ... , such as steel structure project, railway traffic, bridging, shipbuilding, machine manufacture, aviation and spaceflight. drilling machine for Cutting tools HSS core drill