Patent ID: 8065936

Claim:
A device comprising: a housing having a first and a second through hole formed therein, wherein each through hole has an opening on a first side of the housing and an opening on the second side of the housing, wherein the openings for each of the through holes is substantially the same; an energy device coupler, adapted to be received by the first side or the second side of one of the through holes, to receive energy from a driving device; an insert, adapted to be received by the first side or the second side of other of the through holes and including an inner opening therein in alignment with the other of the through holes to enable a material to pass therethrough, to perform an operation on the material as it passes therethrough; a transfer mechanism to transfer energy received from the energy device coupler to the insert, wherein the transfer mechanism includes a first gear associated with a first through hole and a second gear associated with a second through hole, wherein first gear has different number of teeth then the second gear, wherein said substantially the same openings enables interchangeable engagement of the energy device coupler and the insert, thereby the ratio of teeth in the first gear to teeth in the second gear controls different speed and torque of transferred energy depending on the openings operably engaged by the energy device coupler and the insert.