SPEED WRENCH, ITS RECONSTRUCTION, AND USING METHOD

摘要

PROBLEM TO BE SOLVED: To solve a problem of operation stability when a pivot axis of a drive head is parallel to the offset direction of an operation handle in a flex head type speed wrench. SOLUTION: Stability of a wrench is improved by a flex head type speed wrench (20) whose pivot axis (504) of a drive head (22) is perpendicular to the offset direction (510) of an operation handle (30). COPYRIGHT: (C)2008,JPO&INPIT