Designed to perform the same tasks as circular saws but requiring no electricity and generating no dust, the Magnum shear cuts laminate flooring, wood flooring, and fiber-cement siding. It is made of 90% recycled aluminum and plastic. Blades last 20 times as long as traditional power saw blades, the manufacturer says. Heavy-duty and medium-duty versions are available. 800.406.8998. www.bullettools.com.