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An adjustable wrench is a versatile tool commonly used in plumbing and mechanical work to tighten or loosen nuts and bolts of different sizes. But how does an adjustable wrench work?
### Adjusting the Jaw.
The most distinctive feature of an adjustable wrench is its adjustable jaw. This allows the user to adjust the width of the opening to fit various sizes of nuts and bolts. The jaw is attached to a threaded spindle, which is turned by a thumbwheel or knurled knob. By turning the spindle, the distance between the jaws can be increased or decreased.
### Gripping the Nut or Bolt.
Once the jaw has been adjusted to the correct size, the user can place it around the nut or bolt to be tightened or loosened. The moveable jaw should be positioned on the side where the force is being applied, while the fixed jaw should be on the opposite side to provide stability.
### Applying Force.
To tighten a nut or bolt, the adjustable wrench is turned clockwise. This causes the jaws to clamp down on the fastener, holding it in place while torque is applied. Conversely, to loosen a nut or bolt, the wrench is turned counterclockwise. The jaws grip the fastener as it is turned, helping to break the bond of rust or corrosion.
### Features and Usage.
Adjustable wrenches come in various sizes, with some having a straight handle and others having an angled handle for better leverage. The knurling on the thumbwheel or knurled knob provides a secure grip, even when wearing gloves. It is important to use the correct size adjustable wrench for the job to prevent damaging the fastener or the wrench itself.
In conclusion, the adjustable wrench works by adjusting the jaw to fit the size of the nut or bolt, gripping the fastener securely, and applying torque to tighten or loosen it. By following these steps and using the wrench correctly, it is a versatile tool that can handle a wide range of fastener sizes and applications.