The Sawtec CC-100 crack chaser is a high-productivity, walk-behind saw that cuts concrete or asphalt to a 1- inch depth. The unit cuts 6 to 8 feet of crack per minute, or up to 3,000 feet per day, depending on the material being cut. It features a swivel caster and a retractable control handle, and uses 6-inch diameter dry diamond blades in three different widths. The smaller blade allows a tighter turning radius, making it easier to follow cracks. The saw is available in gasoline or electric models and controls dust when connected to a separate Sawtec Maxi-Vac dust collector. An optional catalytic converter kit reduces gas exhaust emissions. For more information, call (800) 256-3440 or visit www.surfacepreparation.com.