< Hand tools Combination spanners
An introduction to combination spanners: an essential tool for engineering workshops
Combination spanners are among the most versatile and indispensable tools in mechanical workshops. Known for their ability to adapt to a variety of tightening and loosening requirements, these tools are designed to offer precision and reliability. In this article, we will explore in detail what combination spanners are, how they are used, the benefits they offer, and we will answer the most frequently asked questions about this essential tool.
What are combination spanners and how do they work?
Combination spanners are hand tools used to tighten or loosen nuts and bolts. They are called ‘combination’ because they combine two types of spanner in a single tool: an open-ended spanner at one end and a box spanner at the other. The open-ended spanner is ideal for quick access and for working in tight spaces, whilst the box spanner offers a more secure grip and greater leverage, reducing the risk of damaging the nut or bolt.
Applications of combination spanners in mechanical workshops
Combination spanners are used in a wide range of applications in mechanical workshops. They are essential for maintenance, repair and assembly work on machinery. Thanks to their versatility, they can be used on vehicles, industrial equipment and production facilities. Their ability to adapt to different sizes of nuts and bolts makes them an indispensable tool for professional mechanics.
Advantages of combination spanners
Using combination spanners offers numerous advantages. Firstly, their dual function saves space in the toolbox, reducing the need to carry multiple tools. Furthermore, combining an open-ended spanner and a box spanner in a single tool increases work efficiency, allowing you to switch quickly between different types of fastenings. Combination spanners are also designed to withstand high loads, ensuring durability and reliability over time.
How to choose the right combination spanners
Choosing the right combination spanners depends on several factors, including the type of work to be carried out and the size of the nuts and bolts you intend to work on. It is important to consider the quality of the material, as spanners made from chrome-vanadium steel offer greater resistance to corrosion and superior durability. Furthermore, it is advisable to opt for sets of spanners that cover a wide range of sizes, to ensure maximum versatility.
Maintenance and care of combination spanners
To ensure your combination spanners have a long service life, regular maintenance is essential. After each use, it is advisable to clean the spanners to remove any oil residue and dirt. Furthermore, it is important to store the spanners in a dry place to prevent rust from forming. Periodically checking the spanners for any signs of wear or damage can prevent problems during use.
Frequently asked questions about combination spanners
What is the difference between a combination spanner and a adjustable spanner?
A combination spanner combines an open-ended spanner and a box spanner, whilst an adjustable spanner is adjustable and can fit different sizes of nuts and bolts.
Are combination spanners suitable for work on heavy goods vehicles?
Yes, combination spanners are suitable for work on heavy goods vehicles, provided they are of the appropriate size and quality to handle heavy loads.
What materials are used to make combination spanners?
Combination spanners are generally made from chrome-vanadium steel, known for its strength and durability.
How is the size of a combination spanner measured?
The size of a combination spanner is measured in millimetres or inches, depending on the width of the open-ended and box-end parts.
Can combination spanners be used on rusty nuts and bolts?
Yes, combination spanners can be used on rusty nuts and bolts, but it is advisable to apply a lubricant to make the job easier.
Can combination spanners damage nuts or bolts?
If used correctly, combination spanners should not damage nuts or bolts. It is important to choose the correct size to prevent the spanner from slipping.
What is the ideal length for a combination spanner?
The ideal length depends on the specific application. Longer spanners offer greater leverage, whilst shorter ones are ideal for confined spaces.
Are combination spanners suitable for precision work?
Yes, combination spanners are suitable for precision work, particularly when a secure and stable grip is required.
Can combination spanners be used on materials other than steel?
Yes, combination spanners can be used on materials other than steel, provided they are of the appropriate size and type.
How should combination spanners be stored correctly?
Combination spanners should be stored in a dry, clean place, preferably in an organised toolbox to prevent damage and wear and tear.Read More Read Less 
