Abstract: An adjustable universal pipe fastening tool is configured such that mechanical elements, particularly fastening members such as bolts and nuts and pipes, can be easily fastened and unfastened using a single tool, thereby ensuring a convenient use. Particularly, an adjustable universal pipe fastening tool having a spanner portion is provided, which is configured to rotate, and a wrench portion, which is configured to be able to slide. The adjustable universal pipe fastening tool according to the present invention comprises: a body portion, which has a sliding hole formed on a surface thereof; a spanner portion formed on one side of the body portion so as to manage fastening and unfastening of mechanical elements; and a wrench portion formed on the other side of the body portion so as to manage fastening and unfastening of mechanical elements while sliding inside the sliding hole of the body portion.

Abstract: Disclosed therein is a jog-shuttle type ratchet wrench. The jog-shuttle type ratchet wrench includes: a body part having a round hole formed at one side thereof and a stopper embedded therein; a head part rotatably mounted in the round hole; a bevel gear having a first gear portion rotatably joined to one end portion of the control roller inside the housing and a second gear portion rotatably geared with the first gear portion in interlock with the rotation of the first gear portion; a rotary shaft located inside the housing and joined to the second gear portion; and a pair of jaws having an end portion inserted into the housing, wherein the head part is selectively rotated only in one direction when the ratchet gear engages with the stopper.

Abstract: A ratchet wrench is disclosed, which comprises a body unit which has a circular groove at its one side and a stop member; a head unit which includes a housing rotatably passing through a circular groove of the body unit, and a ratchet gear engaged at an outer rim of the housing and is selectively rotatable in one direction as the ratchet gear is engaged with the stop member; a worm screw which is rotatably pin-engaged in the interior of the housing; and a pair of arms of which one end of each arm is inserted into the interior of the housing and is pin-engaged therein with a thread being formed on an upper side of each arm and being engaged with the worm screw.