Mr. Grosse isn't saying at this time. We do know that there are no saws or abrasive wheels and that the method involves a form of shearing. This process is proprietary and patented. For that reason it wouldn't ordinarily be discussed in Metalworking's feature pages. We made an exception in this case because of it's importance and the fact Mr. Grosse will shear on a contract basis for all comers.
Parts being sheared in enormous volume include shafts, armatures, tool holders and keys.
The tooling is actually broken, note the top plate. It broke because of a deliberate overload in an attempt to achieve that fully-sheared cut. It's still making acceptable parts.