Products 03/09/2011 Lightweight Chop Saw: Ergonomic Handle The PC14CTSD 15-amp Chop Saw has a 3,800-rpm motor and is able to cut through tough materials including cast-iron pipe, angle iron, threaded rod, conduit and square tubing. An ergonomic D-shaped handle makes for smoother cuts, and it has a heavy-duty guard and an adjustable spark deflector. The blade features 45° of mitre adjustment and a quick-release clamp. The chop saw weighs only 35.2 lb, allowing for easy transport to and around the jobsite. Porter-Cable; 888-848-5175; www.portercable.com Scissor Lifts: New Heights Genie has introduced three new models of its Rough Terrain Scissor Lifts.
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.