A Roto-Split is a highly-specialized tool invented by Lucien C. Ducret, the founder of Seatek Co. Inc. It is used in stripping the casing from metallic-clad electrical power cable (MC cable). The tool does not actually strip the casing, but facilitates the process considerably.
The tool includes a guide or channel to hold the cable secure and uses a plier-type action to apply consistent force on a hand-cranked grinding wheel, which cuts across the spiralled aluminum, steel casing of a multi-wire cable. Once this cut is made, the sections of spiral jacket on either side of the cut may be separated by a sharp twisting action in opposite directions.
Alternatives to the use of this tool include a metal saw, mounted in a hacksaw or other saw handle, or in a reciprocating saw.