Products 03/23/2011 Cordless Metal Saw: Many Cuts on a Single Charge The M18 Cordless 53/8-in. Metal Saw is Milwaukee’s latest addition to its M18 lithium-ion cordless tool range. The saw is capable of making 200 cuts of ¾-in. EMT conduit on a single charge. An impact-resistant window and LED light provide a clear view of the cut; cutting depth can be adjusted from 1/8 in. to 2 in. Milwaukee Electric Tool Co.; 800-729-3877; www.milwaukeelectric.com Water-Source Heat Pump Multiple Options The Horizontal Water-Source Heat Pump from Ice Air is available with rotary or scroll compressors and features a heavy-duty gavanized-steel chassis
Arch dams, classically curved monoliths situated in narrow valleys, are not as common as other types of dams, such as embankment dams and gravity dams. ENR takes a look at some of the biggest arch dams in the world, both completed and under construction.