The world is moving at a very fast pace. In this era of automation, everything is being automated. The manual efforts are being reduced by automating the processes and are nowadays done by the use of machines. This project is a four bar hacksaw that operates automatically using components like sensor circuit and wiper motor. This four bar hacksaw works on the principle of scotch yoke mechanism. This project is a fully automated project This works quicker than a single hacksaw because it now have four blades to work. The blades of four bar hacksaw are able to apply a relatively constant force to a work piece during a cutting stroke.