A scroll saw is a small electric or pedal-operated saw used to cut intricate curves in wood, metal, or other materials. The fineness of its blade allows it to cut more delicately than a power jigsaw, and more easily than a hand coping saw. Like those tools, it is capable of creating curves with edges, by pivoting its table.
The scroll saw's name derives from its traditional use in making scrollwork, sculptural ornaments which prominently featured scroll-head designs.
While somewhat similar to a band saw, a scroll saw uses a reciprocating blade rather than a continuous loop. Like a hand coping saw, the scroll saw's blade can be removed and placed through a pre-drilled starting hole, allowing interior cutouts to be made without an entry slot. Also, the fineness in both width and tooth count of a scroll's blade permits significantly more intricate curves than even the narrowest gauge band-saw blade.
The majority of scroll saws offer a small light on a flexible arm that illuminates the work area and a dust blower nozzle to keep the work space clear while working. Table-tilting enables angled cuts to be made precisely and easily. Variable-speed support allows even finer control over cuts when working with delicate materials or when making intricate cuts.
Scroll saws are classified according to the size of their throat, which is the distance from the blade to the rear frame of the saw. The throat depth determines how large a piece of wood can be cut. Smaller saws have a throat of as little as 12 inches (300 mm), while commercial saws can approach 30 inches (760 mm). Before the era of computer automation, industrial saws were sometimes used to make even larger objects by hanging the top mechanical linkage from the ceiling, thus providing an arbitrarily deep throat.
Scroll saws vary in price from under $100 to close to $2,000. The more costly saws are more accurate and easier to use, usually because they minimize vibration.
Scroll sawing is a popular hobby for many woodworkers. The tool allows a substantial amount of creativity and requires comparatively little space. In addition, many scroll saw projects require little more than the saw itself, reducing the investment in tools.
Scroll saws are often used to cut intricate curves and joints, a task they can complete quickly and with great accuracy. They can also be used to cut dovetail joints and are a common tool for thicker intarsia projects. When a fine blade is used, the of a scroll saw is all but invisible.