Cordless jigsaws have a rechargeable battery and make straight and curved cuts in lumber, walls, floors, and ceilings. Battery-powered tools don't require access to a wired power source, making them easier to use on construction sites. Jigsaws have a flat plate that rests on the workpiece to support the saw. The cutting blade is mounted perpendicular to the plate and has a forward-facing cutting edge that cuts material as the saw is pushed across the workpiece. These portable tools can be brought to the workpiece when it's not possible to use a larger tool. The straight blade is narrow to allow users to cut curves and join corners more accurately than other handheld saws. Jigsaws are used in carpentry, construction, and other trades.