Abstract: A tool for the cutting or coining of metal, including two jaws connected to parallel links by two jaw joint bolts. Two handles are connected to each other by a handle bolt and are connected to respective jaws by two middle bolts. Each jaw joint bolt is provided with an eccentric bearing surface situated between two coaxial bearing surfaces. The distance and parallelism of the jaws can be adjusted by producing rotating of the eccentric bearing surface by rotating one or more of the jaw joint bolts. The angular motion of the jaws is synchronized by a cylindrical roller retained axially between the links, and guided in a slot formed by overlapped fingers of the jaws.

Abstract: A chain saw guide bar with at least one internal channel for spraying the sawn surface with liquid through nozzles, where the channel is extended in front of the nozzles by an end portion terminated by a closeable cleaning hole with a larger section than the nozzles and usable for cleaning the channel with compressed air or liquid.

Abstract: Bandsaw blade for sawing metal, including straight teeth and set teeth, the set teeth having equal height and occurring in pairs. A distance between the set teeth of each pair of set teeth being equal to the distance between the set teeth of every other pair of set teeth. The distance from each set tooth to an adjacent straight tooth being larger than the distance between the set teeth.

Abstract: A pliers type tool includes two pivoted handle shanks between an S-shaped return spring is attached. The spring is made from a fiber-reinforced polymer and has a greater thickness at the center than at the ends. The width of the spring is gradually reduced from one end to the other. The center is disposed farther from one end than from the other end when the spring is relaxed.