Abstract: A working lamp comprising a transparent or translucent hollow cylindrical body having a handle. The cylindrical body is provided in the direction of the length thereof with a reflecting means. The cylindrical body is internally provided with a large number of light emitting diodes. The cylindrical body is provided on an outer surface thereof near the reflecting means with a permanent magnet. Since the working lamp of the present invention comprises a large number of light emitting diodes disposed within the transparent or translucent hollow cylindrical body, the working lamp can be made small in size to such an extent that the working lamp is capable of being carried or put in a pocket. Therefore, the working lamp of the invention is suited for lightening things disposed in complicated or narrow places. Since the light emitting diodes lighten a wide area, things are made very easy to see.

Abstract: A tool for tightening a bolt in a very narrow place. A substantially circular plate 1 has a thickness approximately the same as the thickness of a hexagonal bolt head 3. The substantially circular plate is provided in a center thereof with a socket 5, which has a hexagonal shape corresponding to said hexagonal bolt head. The socket has a stopper portion 7 adapted to contact a top surface of the bolt head so as to prevent the bolt head from passing through the socket. The substantially circular plate is provided on a periphery thereof with engagement projections 9. The substantially circular plate is easily turned by pushing one of the engagement projections by means of a tip of a screwdriver.

Abstract: A ratchet wrench for turning bolts and nuts disposed in narrow or inaccessible places. The ratchet wrench is rotatably attached to an end of an operation rod. The ratchet wrench comprises a weight attached to the operation rod, the weight being slidable lengthwise along the operation rod, the operation rod being provided at a portion thereof in front of the weight with a front weight receiving portion against which the weight is struck. Alternatively, the operation rod may be provided at a portion thereof in the rear of the weight with a rear weight receiving portion against which the weight is struck. Also, the operation rod may be provided with both the front weight receiving portion and the rear weight receiving portion.