It is limited to the NT cutter L - 500 in an environment where the frequency of use is high like in a factory and work intensity is high. Even though it is taken away, it never breaks. It is useless with other cutters.
This is like a large cutter. It is linear and easy to use without funny Earls. The spring on the back of the tightening dial will break, but if it breaks up with expendables and it breaks it is replacing.