Adjustable, combination, and socket wrenches are essential tools widely used in various fields where tightening or loosening nuts, bolts, and other fasteners is required. Here are the key characteristics and applications of these types of wrenches:

1. Socket Wrenches:

   • Construction: Socket wrenches have an open-ended or closed-loop design, with one or both ends providing access to nuts and bolts.
   • Application: They are used for tightening and loosening nuts and bolts of various sizes. Fixed-head socket wrenches are commonly used in the automotive industry, construction, and repair.

2. Adjustable Wrenches:

   • Construction: Adjustable wrenches feature adjustable jaws, allowing users to change their size to fit different nuts and bolts.
   • Application: These wrenches are ideal for situations where you need to work with fasteners of various sizes. Adjustable wrenches are typically used in automotive repair shops, industrial facilities, and construction.

3. Combination Wrenches:

   • Construction: Combination wrenches have an open-end on one side and a socket on the other, providing versatility in usage.
   • Application: These wrenches combine the advantages of both socket and open-end wrenches, making them convenient for various tasks. They are used in many industries, including construction, mechanics, electrical work, and general repair.

4. Applications:

   • Tightening and Loosening: All three types of wrenches are used for tightening and loosening nuts, bolts, and screws.
   • Versatility: Combination wrenches are especially useful when you need to work with fasteners of different sizes, reducing the number of tools required in your toolkit.
   • Access in Confined Spaces: Adjustable and combination wrenches often have slim profiles, allowing access to nuts and bolts in tight spaces.

These wrenches are essential tools for a wide range of professional and DIY tasks, providing reliable and convenient manual fastening of various types of fasteners.