A back saw is a type of handsaw that is designed for making precise and accurate cuts in wood. It has a thin, narrow blade with fine teeth that are set at a higher angle, typically around 14-20 teeth per inch. The blade is reinforced with a metal or wooden spine on the back to provide stability and prevent bending during use.
The back saw is named for its distinctive back edge, which is usually straight and perpendicular to the cutting edge. This allows the saw to be used for making straight, clean cuts, such as crosscuts and miters. The back edge also helps to guide the saw along a straight line, making it easier to control and reducing the risk of the saw veering off course.
Back saws are commonly used in woodworking, carpentry, and other fine woodworking applications where precise, clean cuts are required. They are often used for cutting small pieces of wood, making joinery cuts, and trimming or fitting woodwork. Back saws can be used by hand or with a miter box or other sawing guide to ensure accuracy.
Overall, the back saw is a versatile and essential tool for any woodworker or carpenter who needs to make precise and accurate cuts in wood.