Contracting tools

Abstract

This article is a fastening tool used when fastening members such as bolts and nuts. As shown in the reference diagram showing the usage state, when fastening a bolt as a fastening member, the user engages the first engagement part of this article with the head of the bolt and engages the second engagement part of this article with the square drive of the torque wrench. The user rotates the torque wrench clockwise around the second engagement part, so that the torque of the torque wrench is transmitted to this article, and this article rotates clockwise around the first engagement part. By rotating this article clockwise, the bolt engaged with the first engagement part also rotates clockwise, so that the bolt can be fastened using this article. The arm part of this article is curved so as to be concave in the opposite direction to the direction of rotation when tightening the bolt, so that this article can avoid or reduce interference with objects around the bolt.

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