| 摘要 |
An adjustable wrench or spanner is provided to adjust the width of opening easily by inserting a pair of bars to grooves provided in the body of wrench and to reduce troubles by having simple structure. An adjustable wrench(10) has a pair of bars having polygon shaped cross-section(12), and grooves(13) formed in the body(11) of a wrench or spanner where a pair of bars are inserted. The polygon shaped cross-section is inserted into the grooves. Handle groove(101) is formed in the middle part of the body. |
