30+ Types of wrenches, Uses, Pictures and Functions with Pdf

Are you looking for a perfect wrench for your work, but you are confused about how many types of wrenches are and how they will useful to you? or want to study the different kinds of wrenches then take the help of this article which will answer your almost all questions.

Wrenches are necessary tools required whenever we do any work at our workshop or home. The different kinds of wrenches with different shapes and sizes performed many kinds of works which make our work easier and faster.

Types of wrenches

So, In this article, we will introduce you to many types of wrenches as well as for which applications they are manufactured.

By the end of this article, you will have learned ample knowledge about the wrenches and their types. so let’s start with our topic that will help you to select the right wrenches for your work.

Types of wrenches & their uses:

The different kinds of wrenches are as follows:-

  1. Adjustable wrench
  2. Open-ended wrench
  3. Box ended wrench
  4. Combinantion wrench
  5. Pipe wrench
  6. Torque wrench
  7. Allen wrench
  8. Impact wrench
  9. Crowfoot wrench
  10. Lug wrench
  11. Drum key
  12. Done bone wrench
  13. Tap wrench
  14. Strap wrench
  15. Basin wrench
  16. Torx key wrench
  17. Ratching wrench
  18. Bung wrench
  19. Die stockholder wrench
  20. Spoke wrench
  21. Tension wrench
  22. Bionic wrench
  23. Oil fillter wrench
  24. Socket wrench
  25. Fan clutch wrench
  26. Pedal wrench
  27. Hammer or Striking wrench
  28. Alligator wrench
  29. Plier wrench
  30. Monkey wrench
  31. Armorer’s wrench
  32. Spud wrench

The detailed information, functions, uses, pictures about the above wrenches is as follows:-

1] Adjustable wrench:

Adjustable wrench

An adjustable wrench is the widely used kind of wrench, which is useful for loosening or tightening operation in almost all works.

As its name suggests, adjustable means such a wrench can be adjusted for a variety of required applications. It consists of the worm screw and two jaws from which one jaw is fixed and the other is adjustable means the adjustable jaw can move horizontally as per the movement of the worm screw.

Thus when we turn the worm screw by thumb, the adjustable jaw moves horizontally, So as per the head size of the fastener, we can set an adjustable wrench for their tightening or loosening.

So, it better choice to have an adjustable wrench rather than choosing a particular standard size wrench from a big set of wrenches. It is very commonly used in plumbing as well as garages.

2] Open-ended wrench:

Open-ended wrench

The open-ended wrench is a commonly used wrench. It has open ends having two jaws which are help to hold the head of the fasteners from two sides and there is is ‘U’ shaped gap between them.

These wrenches come in many standard sizes and there are set of open-ended wrenches of different sizes available in the market. The open-ended wrench can used for the hexagonal as well as square head fasteners.

In the case of a double open-ended wrench, both sides are open-ended as shown in the figure, and in such wrench, both sides have different size open ends.

3] Box ended wrench:

Box ended wrench

This wrench has a closed ring shape head and there are points on the inner circumference of the closed ring shape head which are help to hold the faster firmly.

Box-ended wrench holds the fastener head from all sides. The box-ended wrench helps to hold or lock the corners of the fastener head, therefore it has fewer chances of rounding off the fastener head rather than in the case of an open-ended wrench.

The box-ended wrenches can be used for hexagonal as well as square head fasteners.

The disadvantage of the box-ended wrench is that it can be used only for loosening or tightening operations if there is space around the fastener to install such a wrench.

4] Combination wrench:

Combination wrench

The combination wrench means a combo of two different wrenches which are open-ended wrench and close-ended wrench. So, we can take advantage of two different wrenches using this one wrench.

The benefit of using such a wrench is that closed-end helps in loosening the stuck bolt or tightening the bolt tightly as well as open-end helps to quickly loosen or tighten the bolt.

5] Pipe wrench:

Pipe wrench

The pipe wrench is a kind of adjustable wrench that is used for the tightening of loosening circular pipes which are connected by threaded joints.

The pipe wrench is made up of two steel jaws having serrated teeth on them to hold the pipe firmly. From two jaws, the lower one is fixed to the body while the upper one is adjustable (Can move in up and down direction). The upper adjustable jaw (having external teeth at the end) can adjust with the help of Adjustment Nut (having internal teeth).

Because of the ability of serrated teeth to inserts on the pipe surface to hold firmly, a pipe wrench is also used to loosen the stuck bolts which are difficult to remove by the open or close-ended wrenches.

6] Torque wrench:

Torque wrench

The torque wrench is the wrench in which we can set how much torque should apply for a tightening of the fastener.

The preset value of torque helps from the over-tightening or improper tightening of the fastener.

There are six different types of torque wrench which are as follows:-

  1. Dial torque wrench
  2. Beam torque wrench
  3. Hyadraulic torque wrench
  4. Digital torque wrench
  5. Micrometer torque wrench
  6. Click torque wrech

Such a wrench plays a significant role in the automotive industry where during the assembly of vehicles fastener requires to tighten with the recommended torque value.

7] Allen wrench:

Allen wrench

Allen wrench is the ‘L’ shaped tool having a hexagonal cross-section. It is also known as the Allen key or hex key.

Allen wrenches come in different sizes which helps us in using them for different applications.

As the Allen wrench has a hexagonal cross-section, it can only use for tightening or loosening of a fastener having hexagonal shaped recess on the head.

The Allen wrench is used in plumbing work for joining parts, in automobile work to tighten or loosening of parts, etc.

8] Impact wrench:

Impact wrench

An impact wrench is an electric or pneumatic powered wrench that offers high torque for loosening or tightening fasteners with less effort and time.

The technology used in the impact wrench applies high torque to remove or tighten fasteners quickly.

The different sizes of sockets can use on the impact wrench to firmly hold the fasteners of different sizes as per the required application.

The impact wrench is usually seen in vehicle garage where it is used to remove or tighten log nuts during changing car wheels as well as it is also used in machines maintenance works, the automobile industry for assembling automobiles, etc.

9] Crowfoot wrench:

Crowfoot wrench

Crowfoot wrench is similar to an open-ended wrench but it doesn’t have a long handle. The crowfoot wrench has a square-shaped space below the jaws to attach the square drive of the socket wrench.

The crowfoot wrench can be used for loosening or tightening fasteners that are located at the difficult place where normally wrenches can not use.

10] Lug wrench:

Lug wrench

The lug wrench is a cross-shaped and circular cross-section wrench with different standard size sockets at each end.

As per the name, this wrench is specially designed for the tightening or loosening of automobile wheel lug nuts.

The lug wrenches are also in the form of L-shaped, in which socket at the one end and a flat tip on one end.

11] Drum key:

Drum key

The drum key is the ‘T’ shaped wrench which applications found in the maintenance of musical instruments.

In musical instruments like drums, this wrench is used to adjust tension rods as well as adjust the cymbal stand.

12] Dog bone wrench:

Dog bone wrench

Dog bone wrench is the kind of socket wrench and it looks like a dog bone.

In this wrench, there are eight sockets, from which four joined sockets at the first end and the remaining fours are at another end. These all 8 sockets are of different sizes which is the advantage of this wrench means one dog bone wrench can do work of 8 different standard sizes wrenches. Thus it is easy to carry and fast in operation and saves time from choosing particular size socket wrenches from all sets of wrenches.

The dog wrench applications are found in many works like in assembling or maintenance of vehicles.

13] Tap wrench:

Tap wrench

The tap wrench is the wrench that is used to hold the treaded tool/tap and helps for producing internal threads in the present hole on the workpiece surface.

There are two kinds of tap wrench which are ‘T’ shaped wrench (as shown in the above figure uses a collet to hold tool/tap) and double end adjustable tap wrench (uses clamps to hold tool/tap).

14] Strap wrench:

Strap wrench

A strap wrench is a tool that is rarely used during work. It uses the rubber strap to tighten or loosen elements. The strap wrench uses the rubber strap which holds the element and using the handle element is tightened or loosened.

The strap wrench applications are found in plumbing and household work.

15] Basin wrench:

Basin wrench

The basin wrench is the hand tool that is used in home plumbing work. Basin wrench is consists of a spring-loaded jaw at one end and a handle at another of the body.

The basin wrench is used for the loosening or tightening of kitchen or bathroom pipeline fasteners that are located in narrow spaces where another standard wrench can’t use.

16] Torx key wrench:

Torx key wrench

Torx key wrench is the ‘L’ shaped wrench that is used on the fastener’s which head have star shape recess.

The Torx key wrench is also recognized as the star key. The ends of this wrench is of star shape cross-section while the remaining body is of circular cross-section.

The Torx key wrench comes in different sizes with different torque handling capacities.

17] Ratching wrench:

Ratching wrench

A ratcheting wrench is a wrench that has a ratcheting head at one side and an open-end at another side.

The advantage of using a ratcheting wrench is that because of the ratcheting mechanism, it works in one direction. Hence no needs to, again and again, remove the wrench and then reset. Thus it is faster in operation.

Some ratcheting wrenches also comes with a swivel head which makes them able to use a wrench at any angle.

18] Bung wrench:

Bung wrench

Bung wrench is a simple to use wrench that has 4 lugs at the head which helps to tighten or loosen the plug.

Most lung wrenches are made from cast aluminum. The bung wrenches are lightweight hence there are easy to carry. The bung wrenches are used in many kinds of applications such as removing the steel or plastic cap and plugs of the drums.

19] Die stockholder wrench:

Die stockholder wrench

Die stock-holder is the wrench used for holding the standard size dies and rotating with dies to cut external threading on the workpiece. The die stock-holder is made from cast iron while handles are made from mild steel.

The applications of the die stock holder wrench are found in producing threads onto the metal pipes.

20] Spoke wrench:

Spoke wrench

The spoke wrench is a small hand tool that is used to tighten or loosen the bike spokes. The spoke wrenches come in many kinds with sizes in millimeters.

21] Tension wrench:

Tension wrench

The tension wrench is a metal strip of flat shape that comes in both short and long sizes. The tension wrench comes in an ‘L’ shape in which the log end is used as a handle to rotate the wrench.

The tension wrench is used for the lock picking.

22] Bionic wrench:

Bionic wrench

A bionic wrench is a kind of adjustable wrench used to tighten or loosen fasteners. The bionic wrench head consists of six pins that firmly hold the faster and apply equal forces on the fastener head from all sides.

The bionic wrench is made of steel and the grip is made up of plastic. The advantage of using the bionic wrench is that it can use for many sizes of fasteners rather than using standard sizes wrenches.

This type of wrench is also helpful for loosening stuck bolts.

23] Oil filter wrench:

Oil filter wrench

An oil filter wrench is a hand tool used to loosen or tighten a vehicle oil filter. This wrench uses a rubber strap that has an antiskid grip to hold the oil filter firmly without slipping.

The rubber strap oil filter comes in two different sizes. The handle of this wrench is made up of plastic and the strap is made up of reinforced rubber.

24] Socket wrench:

Socket wrench

The socket wrench is a widely used and helpful wrench. This wrench consists of the ratcheting mechanism (located in the head) and square drive connected to the head.

There are different kinds and sizes of sockets that can be attached to the square drive of the socket wrench as per the required applications.

The ratcheting mechanism used in this type of wrench helps in working the wrench only in one direction. Therefore no need to, again and again, remove and reset the wrench on the fastener.

25] Fan clutch wrench:

Fan clutch wrench

A fan clutch wrench is a wrench that is flattened in shape. The fan clutch is used for the loosening or tightening of the fan clutch (engine cooling fan) in the vehicle.

Therefore fan clutch wrench applications are found in the automobile industry and auto garages.

26] Pedal wrench:

Pedal wrench

The pedal wrench is a wrench for the installation or removal of the bicycle pedal. The pedal wrench is made up of the flattened head and circular cross-section handle. There are one or two ‘U’ shaped slots on the head which are help to tighten or remove the pedals on the cycle cranks.

Therefore pedal wrench applications are found in the bicycle manufacturing industries and in bicycle garages.

27] Hammer wrench or Striking wrench:

Hammer wrench or Striking wrench

The hammer wrench is the wrench that helps to provide extra effort to tight or loosen nut/bolt. One side of the hammer wrench has an open or close-end and another side of the wrench has a large and thick shape handle which is provided to apply force with a hammer.

Applying effort with hammer provides high torque on bolt/nut which helps in loosening or tightening of Nut/bolt.

Using a hammer wrench we can remove the stuck bolts.

28] Alligator wrench:

Alligator wrench

Alligator wrench is the wrench with two jaws at one side from which one jaw has serrated jaws and the other jaw is flat as well as an adjustable wrench at the other end.

This wrench is recognized as an alligator wrench since its head is looks like an alligator head. The alligator wrench has self-ratcheting action because of threaded and flat jaws. Hence there is no need to, again and again, remove and reset the wrench.

Along with a hexagonal head fastener, this wrench can also be used for a square head fastener.

29] Plier wrench:

Plier wrench

The plier is a commonly used wrench that has the capacity to operate on wide sizes fasteners. The jaws of the plier wrench can be adjusted with the push button as per the sizes of the fastener.

The plier wrench has double teeth engagement for the push button to adjust the jaws. The plier wrench is used in plumbing applications, fitting square as well as hexagonal head fasteners, etc.

30] Monkey wrench:

Monkey wrench

Monkey wrench is rarely used wrench while this wrench was largely used at the time of 19th as well as some time in 20th century. This wrench is now replaced by the kinds of adjustable wrenches which are light-weight and easy to use rather than bulky and thick monkey wrench.

31] Armorer’s wrench:

Armorer's wrench

Armorer’s wrench is a multi-function tool used by armorers for many kinds of weapons repairing works. The armorer’s tool is thick and made from stainless steel. It has many wrenches features such as it is used for barrel nut, flash hider, socket, Butterstock tube, Castle nut, Compensator and Muzzle devices, etc.

32] Spud wrench:

Spud wrench

A spud wrench is a hand tool that has an adjustable or close-end at one side and the other side has a tapered spike. The spike side of this wrench is used to align the holes of parts at the time of fitting.

The spud wrench application is found in the ironworker’s job during construction where they use it for aligning girder and beam holes for joining them.


  1. What are the most common wrenches?

    The most common wrenches people widely use are Adjustable wrench, Socket wrench, Pipe wrench, Plier wrench, and combination wrench.

  2. What are torque wrenches?

    The torques wrenches are the wrenches in which we can set how much torque need to apply on the fastener during tightening.

  3. What are line wrenches?

    The line wrench is the closed-end wrench with one side is open and the line wrenches are also known as the flare nut wrench.

  4. What are the two kinds of wrenches?

    There are two common types in the wrenches: Male wrenches and Female wrenches. The male wrenches are those which heads are inserted into the recess of the fastener while the female wrenches are those which cover and hold the head of the fastener.

  5. What is a tube wrench?

    The tube wrench is an adjustable wrench that has serrated teeth on the jaws to firmly hold the fastener. The tube wrench is mostly used for handling pipes and it is also known as the pipe wrench.

  6. What is a brake wrench?

    The brake line wrench is also called the line wrench which is the closed-end wrench with one side is open and provides a great grip hence it is used to operate the flare nut.

  7. How do I choose a wrench?

    There are the standard sizes as well as some special-purpose wrenches are available in the market. So, first of all, you have to know about them and then choose the perfect size wrench that will be perfect for your desired work.

  8. What is wrench and screw?

    The wrench is the hand tool that is used to tighten or loosen the fastener and the screw is the fastener that has threads and is used for joining parts.

  9. What is open wrench?

    The open wrench is the wrench that has the open ends at one or at both sides.

  10. What do I do if my wrench is too small?

    If you have a wrench which is too small to open the nut/bolt which is in big size then weld the perfect size nut which can handle by wrench on big nut/bolt and then tight or lose the nut/bolt.
    But my suggestion is If possible then buy the adjustable wrench that can be used for the wide range of sizes fasteners rather than adjustment with an old wrench.

  11. What are the sizes of wrenches?

    All wrenches come in many standard sizes, So, we can purchase the one which is required to us or even can purchase the set of the wrench which includes the same wrench in different sizes.

  12. What is a closed wrench?

    The closed-end wrench is the commonly used wrench that has closed-end (ring-shaped) at one or both sides. The closed-end wrench is also known as the box wrench.

  13. What is the difference between open-end wrench and combination wrench?

    The open-end wrench has an open end at one or both sides while the combination wrench has the open-end at one side and the closed-end at another side.

  14. What do wrenches mean?

    Wrenches are hand tool that is used for tightening or loosening the fastener. Example: Tightening of the Bolt (Fastener) with an adjustable wrench.

  15. What are the two basic parts of a socket wrench?

    The socket wrench has two basic parts that are handle and socket.

Last words:

So, friends These are all the different types of wrenches which are used in work from which some are commonly used while some are for the special application. That’s all for this article. I hope you have totally learned about the different kinds of wrenches. And, before reading this article, if you were in trouble for finding the required wrench, then I think you may have decided the perfect one for you.

If are you looking for some wrench that is not included in the article as well as if you want to know detail about any of the wrench mentioned above, then don’t be hesitate to comment on this article, we will answer it in this article.

Media credits:

  • Crowfoot wrench image by Amazon
  • Lug wrench image by grainger
  • Drum key image by Amazon
  • Dog bone wrench image by Joom
  • Tap wrench image by User:Omegatron, CC BY-SA 3.0, via Wikimedia Commons (Modified)
  • Strap wrench image by Amazon
  • Basin wrench image by Oxtools
  • Torx key wrench by element14
  • Ratcheting wrench image by lowes
  • Bung wrench image by Amazon
  • Tension wrench image by Lockpicking center
  • Oil fillter wrench image by Amazon
  • Monkey wrench image by ebay
  • Armorer’s wrench image by Gero Gun

2 thoughts on “30+ Types of wrenches, Uses, Pictures and Functions with Pdf”

Leave a Comment