This line of diamond core bits is suitable for core drilling to depths of between 1 and 6 mt and a max diameter of 127 mm. Unlike traditional continuous core drilling, fast continuous core drilling involves considerably lower weights, as the steel thickness is comparable to that of a standard diamond core bit. For the same reason, traditional water-cooled core drills with a power of between 2600 and 4200 W can be used. Compared with traditional core drilling, this system allows the hole to be drilled by screwing the extensions onto one another while keeping the core inside the core bit.