Monkey Wrench (gradated)

Monkey wrench with adjustable jaw, which employs rack and worm mechanism.
[Features]
· Used for tightening and loosening of bolts/nuts, etc.
· Worm and rack combination allows the mouth opening/closing to be adjusted to suit the size of the bolts and nuts used.
· Has a scale that can easily be adjusted to the sizes of nuts/bolts in advance.
[Applications]
· Convenient for assembly and maintenance of machinery, and maintenance of automobiles, motorcycles, and bicycles.