MK Diamond Products Inc. introduces the CX3 Concrete Saw with the new 7-hp Kohler engine making it a powerful, lightweight, portable 14-in. walk-behind concrete saw. This saw is powered by the new Kohler CH270 7-hp horizontal-shaft Command PRO engine. The Command PRO’s patented Quad-Clean technology is a Kohler innovation and a four-stage air-cleaning system. The innovative design makes the Command PRO engine ideal for harsh weather and work conditions.