Who invented the wrench

Who invented the wrench? On Apr 18, 1967, John Jackson, the world’s only Black Americans boxing champion, created the wrench. However, about 1835, Solomon Merrick patented the first wrench. Later, in 1758, William Conkey designed the Monkeywrench. Then, on Nov 9, 2018, Robert Owen Jr of Newark (Ohio) acquired a ratchet wrench.

What is a wrench?

  • A wrench or spanner is a tool functioned by hands and is made for jerking and releasing nuts and bolts–or specifically rotary fasteners.

  • The working mechanism of a wrench is straightforward. The wrench works like a lever and has notched at the edge for gripping. It grasps nut or bold so that a pull can spin the nut on the wrench.

Who invented the wrench?

  • They invented the very first wrench in the early nineteenth century. After that, it has manufactured different types of wrenches till the late twentieth century.

  • Depending on its shape and size, each twist encompasses a unique style and function.

Who invented the Solomon Derrick Wrench?

  • In 1835, Solomon Merrick from Springfield invented a screw bases wrench coach wrench design. We cannot describe Solomon’s complete biography here.

  • However, we know he patented his first wrench on May 7, 1842. The first wrench was an S-shaped tool with a straight angle and was made with wrought iron.

  • People liked his idea because there was no need to use much power to turn screws and nuts.

  • Solomon wrenches, also known as adjustable wrenches, are still available and used with different rotary fastener sizes.

Who invented the Monkey Wrench?

  • Many people copied Solomon’s wrench idea and tried to invent more tools by following the same concept. In 1858, Charles Monchy patented his first wrench – known as a monkey wrench.

  • They named a monkey wrench using some random misunderstandings of Charles Monck’s name.

  • A monkey wrench is a wrench with smooth jaws commonly used by plumbers today for turning threading pipes.

  • Monkeywrench invention got very popular, and for the next 85 years, different monkey wrenches were being invented by other companies. That wrench was advertised and been sold in the UK for many years.

Who invented the Pipe Wrench?

  • Daniel C Stillson invented the pipe wrench, a stream boat fighter, on Sep 9, 1870. They patented Stillson for Stillson pipe wrench–used for screwing pipes together.

  • Stillson worked in an industry where they burned and heated pipes for different purposes. His owner asked him to make a prototype by which they can turn and break the line easily.

  • Stillson manufactured a pipe wrench, which twisted the pipe easily. , The industry appreciated his work, and they awarded him $75,000 for that invention during his lifetime.

Who invented the Ratchet wrench?

  • Robert Owen (formerly of Shawnee) invented the Ratchet wrench in the late nineteenth century. He received his wrench patent on Sep 9, 1913.

  • An invention of John Varnish, an engineer of GSFC, took the idea for a ratchet wrench (NASA/Goddard Space Flight Center).

  • A ratchet wrench is a kind of combination wrench having ratcheting pawls inside. They are great for such vehicle stuff where a ratchet and socket don’t fit in their places.

  • Pawls inside the ratchet wrench help it turn in one direction and to nut in another direction.

Who invented the Allen wrench?

  • William E Allen, from Allen’s industry, invented Allen wrenches in 1911. Allen wrench is a small hex key type hexagonal wrench used for driving bolts that have hexagonal sockets.

  • L-shaped Allen wrenches are the most common ones and are easily available everywhere. Allen wrenches are L-shaped wrenches, which are available in a variety of sizes.

  • The Smallest Allen wrench is about 1.25mm, while the largest one is around 190mm.

Wrench types

Wrench Type Year
Solomon Merrick Wrench 1835
Monkey Wrench 1852
Pipe wrench 1870
Ratchet wrench 1891
Allen wrench 1911

Wrench Types and their uses

:small_blue_diamond: Nowadays, wrenches are available in a variety of sizes and shapes. All types of wrenches are used for loosening or tightening bolts and screws. Here are some of the most common types of wrenches:

1. Socket Wrench

  • Socket Wrench is open from both edges and used to tighten nuts and screws.

  • It has a jointed-flexible model that helps you to work at different angles.

  • It’s possible to put a bolt in a recessed hole while using these tools, as open-and-close wrenches wouldn’t be able to accomplish this.

  • The wrenches in this set have offset handles positioned perpendicular to the screw to be twisted or adjusted.

  • The handle is a rack and pinion grip that allows users to rotate the socket without removing it from the nut by turning the knob back and forth.

2. Torque wrench

  • A torque wrench is a long straight wrench specially designed to provide a specific amount of torque for items.

  • The amount of provided torque can vary from wrench to wrench, depending on its size and shape.

  • We mostly used them in automobile industries for tightening wheel lug nuts. We can also use a torque wrench for bicycles or any farming apparatus where a specific amount of torque is needed.

3. Open-end wrench

  • An open-end wrench is a long U-shaped wrench that is open from both edges. One open end is slightly smaller than the other.

  • They are most likely to round the edges of screws and are specifically designed for hard-to-reach nuts.

4. Stubby wrench

  • A stubby wrench is a small-sized wrench that is available in some standard sizes.

  • It is used for tightening and loosening nuts in tight places.

5. Strap wrench

  • The strap wrench is made up of rubber fabric and a metal band.

  • We use them for tightening and loosening items that don’t have any flexible space.

  • They are best for round items that are too greasy for a normal wrench to grip.

6. Basin wrench

  • Basin wrench is a long T-shaped-shaped wrench used for tightening and loosening nuts under the basin, toilets, and lavatories.

7. Spanner wrench

  • A spanner wrench is a C-shaped wrench with a curved end.

  • They are a specialized class of tools with pins, which allows them to be used for many items–from spanner head nuts to retainer holes.

8. Crowfoot wrench

  • The Crowfoot wrench has no handle and can be used along with a ratchet wrench.

  • We also used it for tightening and loosening nuts in tight places.

  • It is available in standard and metric sizes.

9. Spoke wrench

  • A spoke wrench is a round-shape wrench specially designed for gripping the spokes on wire wheels.

  • Because of its round shape, we can easily rotate it in a circle with no trouble.

10. Oil-filter wrench

  • The oil-filter wrench is made up of one metal, and we mostly used one chain strap and in the automobile industry.

  • They come in four specific sizes and styles and usually have to be matched with the model of the vehicle.

11. Hammer wrench

  • A Hammer wrench is a short wrench with an open end. We use it for tightening large adjustments and fasteners.

  • Hammer wrenches are very helpful for releasing stuck and rusted screws.

  • Plumbers mostly use it for electrical works.

12. Garbage disposal Wrench

  • Two little wrenches form a single wrench known as a garbage disposal wrench.

  • That can be used for releasing garbage disposal.

  • Most of them come with large types of Allen wrench.

13. Wrench sets

  • A wrench set is a small bag containing a wide range of wrenches of different sizes and styles.

  • These sets are like handy bags and also comprise many other tools, like pliers and ratchet sets.

  • Each wrench set contains around 400 tools.


A wrench or spanner is a tool functioned by hands and is made for jerking and releasing nuts and bolts–or specifically rotary fasteners. The working mechanism of a wrench is straightforward. The wrench works like a lever and has notched at the edge for gripping.

How many wrenches are available?

  • Various-shaped and -sized wrenches are used for grasping, loosening, rotating, tightening, and securing things like nuts, bolts, and plumbing pieces. We divide the wrenches into two main types.

  • Pipe wrenches for grasping round (cylindrical) objects in plumbing.

  • Wrenches commonly used on nuts and bolts with flat, parallel surfaces, like square or hexagonal ones, are usually applied (hex).

  • We may utilize adjustable wrenches to fit varying nuts, bolts, and pipes, or maybe of a constant size.

Which adjustable wrenches are out there?

  • Pipe wrenches, that have a jointed-flexible model that helps you to work at different angles.

  • Crescent (T.M.) Adjustable-jaw wrenches, with a 30-degree angle between the handle and the wrench head. Regardless matter who made it, a spanner with a slanted jaw is known as a Crescent wrench.

  • Wrenches that have a 90-degree offset from the handle to the adjustable head

What kinds of fixed-size wrenches are there?

Wrenches in fixed sizes include are as follows:

  • A wrench with jaws that feature flat sides or tines to grip nuts and bolts firmly.

  • Wrenches with a ring at the top and notches inside accommodate hex or square nuts.

  • Double-ended wrenches, which feature both open-and-closed ends, are designed to be used with nuts and bolts of a single size.

  • Socket wrenches are cylindrical and can be compared to closed-end wrenches. However, the former is superior.

  • Tight adjustments fixed wrenches are available in only a few sizes. Whole integers (e.g., 4, 16, 18, 30) correlated to the millimeter measurements defined wrench sizes.

  • The United States employs S.G.E. (Society of Mechanical Engineers) non-metric sizes, usually known as quarters of an inch.

  • Examples include 1/2, 1/3, 2/,5, and 1 1/7. The right choice of wrench for Canada is important since metric and S.Y.E. screws (screw, nuts, etc.) are used there.

  • Therefore, people should select a tool to avoid injury and damage to the equipment when force is given to the wrench.

What type of Socket Wrenches are available?

  • One form of a socket wrench, the torque wrench, comes with a built spring-loaded indicator to show how much torque has been applied.

  • The two other types of socket wrenches are removable, nut drivers are not: they’re tools that can be affixed to a Torxé handle.

  • Allen wrenches, or Allen keys, are trapezoid-shaped (five-sided) metal shafts twisted into a P-shape for better leverage.

  • Hex drivers are screwdriver-type Allen wrenches that are described as “straight” wrenches. While we can use others on nut or bolt heads, these special wrenches are better suited for recessed hexagonal holes in screw heads.


Nowadays, wrenches are available in a variety of sizes and shapes. All types of wrenches are used for loosening or tightening bolts and screws. They invented the very first wrench in the early nineteenth century.

What are safety tips for using a wrench?

:small_blue_diamond: Plumbers widely use wrenches for construction and many other purposes. Wrenches are not that difficult to use. However, one must keep these general safety tips in mind while using a wrench:

1. Always use the correct wrench for any specific work. Like pipe wrenches for pipes, basic wrenches for toilets.

2. Don’t use any rusted or damaged wrench. It can damage your work and can also harm your hand.

3. Always use correct change for jaw-wrenches.

4. Always wear a face shield, safety glasses, and gloves while using a wrench.

5. Maintain your body balance while using a wrench. Don’t push too hard; that way, you might lose your balance.

6. While using adjustable wrenches, make sure their jaws don’t open.

7. Keep tools clean and dry to avoid rusting of tools.

8. Keep your tool/wrench set in a well-maintained condition.

What are some things we should avoid doing while using wrenches?

Below are some things we should avoid doing while using wrenches:

1. Don’t use a push wrench because the tool is more likely to slip, and you’re more likely to lose your equilibrium.

2. Make sure that your tools are in good shape.

3. Make sure that you use adjustable wrenches that are not worn. Check the teeth, jawline, and skull for signs of wear.

4. Ensure that we tightly adjusted a flexible wrench before using it.

5. We must not use pipe wrenches on screws or bolts.

6. Do not lift or bend pipes with pipe wrenches.

7. It is not safe to use a screwdriver in a running machine.

8. Make sure you use the right tools for the task. Never use pliers as a hammer or wrench in place of a wrench.

9. Using a makeshift wrench is prohibited.

10. A shim should not be used to improve the fit of a wrench.

11. You should not use a hammer or a similar tool to give your extra wrench force, except for a certain kind of wrench called a “strike face” wrench.

12. Adding sleeved extensions (e.g., a tube) to expand tool handle length will not increase leverage.

13. Make sure not to put a wrench near high heat (like a blowtorch) because it will destroy the instrument.

Frequently Asked Questions:

People ask many questions about: ‘who invented the wrench?’. We discussed a few of them below:

1. How does the wrench function?

  • Wrenches have a head that is a firm lever with a notch in the ends for grabbing the bolt or nut.

2. What is a wrench look like?

  • We shaped most adjustable wrenches like crescent wrenches, and a crescent wrench is a lot like a pipe wrench, so they’re easy to mix up.

  • The standard crescent wrench is made of steel and is known for its flattened handle, around three inches long. A primate wrench’s fangs are parallel to the handle, unlike a regular wrench.

3. What are the differences between a spanner and a wrench?

  • The word wrench can describe various tools, such as adjustable pipe wrenches and spin non-fastening devices.

  • A spanner is a specific wrench with many nodes or hooks around the edge, and it’s used in American English.

4. What is the construction of the wrench?

  • Chrome and vanadium alloys are famous for their durability but pressed sheet metal, and molybdenum steel is less expensive but doesn’t last as long.

  • The stamping wrenches are more powerful and a little more significant for occasional light use because of the extra material needed for strength.

5. What does it mean to be “Wrench time?”

  • Tool time is a statistic that depicts how much time repair technicians devote to working on equipment with tools in their hands.

  • It is crucial to understand what wrench time does not measure to comprehend what it does.

6. How does an open-end wrench vary from a box-end wrench?

  • Miniature and standard box and open-ended wrenches. We employed these devices for fasteners like nuts and bolts, which need to be tightened or loosened.

  • The open end makes the screw or boltless because it just needs to connect to two parts of the fastener.

7. Do I need a screwdriver kit?

  • You will rarely require a socket set unless when you are repairing your car.

  • You don’t need a plug set if you merely want to undertake minor repair work around your home.

  • While a crescent wrench is good, an open-end wrench set is still acceptable.

8. Which tools do you need to tighten a bolt?

  • Most socket wrenches have a ratchet at a 90-degree angle, as well as cylinders of various sizes. To connect to the ratchet, you need to use a square connector.

  • By using the ratchet, you may decide whether to make the nut tighter or looser. Then, hold the socket steady as you spin the handle.

9. Which direction should you use, a wrench, push or pull?

  • When using a wrench, always use a pull instead of a push for more control and balance.

  • To reduce the risk of flying if the screw or bolt loosens unexpectedly, it is better to keep it tightened.

  • Never use a crooked bar or another gadget to extend the strain of a wrench to get additional torque.

10. Why are a socket wrench and a ratchet different?

  • We use screws with torque wrenches, socket wrenches, and ratchets. It’s mainly used for tightening and loosening things like nuts and bolts.

  • After it’s attached to the ratchet, the user can pull or compress a bolt or nut by moving the ratchet’s handle while the socket stays in position.

11. Why is the word spanner used to describe monkey wrench?

  • Hall shared a video clip from Huge International Words, a website dedicated to etymology, which supported the assertion that the wrench’s naming originated from its similarity to a “key wrench” and its difference from a “non-key” wrench.

  • The expression “monkey wrench” was derived from the odd wording. November 28th, 2010.


:small_blue_diamond: Solomon Merrick invented the first wrench in 1835 from Springfield. Later on, people copied his idea, and they invented many wrenches till the late twentieth century. Wrenches are everyday tools used for tightening and loosening nuts.

:small_blue_diamond: Nowadays, wrenches are available in different sizes and shapes, designed for a specific purpose. They are easy to carry and safe to use. However, always maintain safety tips for preventing any damage or injury.

:small_blue_diamond: A wrench set is a small bag containing a wide range of wrenches of different sizes and styles. These sets are like handy bags and also comprise many other tools, like pliers and ratchet sets. Each wrench set contains around 400 tools.

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