The new Roto-Split RS-101B armored cable cutter has an innovative clamping system that automatically adjusts to the cable size. Just squeeze the clamping lever and the AC, MC or Flex is secured — no thumb screws to set. This patent pending system prevents applying too much force to aluminum casing. A few turns of the crank makes a clean slit through armored casing and blade penetration is set at the factory to prevent nicking of the conductors.