Best Box Spanners of 2026

Jennifer Fraser Avatar
Jennifer Fraser
Last Updated: 4 Feb 2026

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Box spanners are a versatile and essential tool for any DIY enthusiast or professional mechanic. These spanners feature a closed-end design that fits snugly over bolts or nuts, allowing for greater torque and less slippage. They come in a variety of sizes and shapes to fit a range of fasteners and are commonly used in automotive, plumbing, and electrical applications. With their sturdy construction and precise fit, box spanners are a reliable choice for any job that requires a secure grip on fasteners.

At a Glance: Our Top Picks

Toolzone 8pc Tubular Box Spanner Set Cover #TOP 1
Toolzone 8pc Tubular Box Spanner Set
ftb score rating icon 9.9
Hilka 17900802 Metric Box Spanner Set Cover #TOP 2
Hilka 17900802 Metric Box Spanner Set
ftb score rating icon 9.8
Silverline 589709 6-Piece Metric Box Spanner Set Cover #TOP 3
Silverline 589709 6-Piece Metric Box Spanner Set
ftb score rating icon 9.6

Top 10 Box Spanners

#TOP 1

Toolzone 8pc Tubular Box Spanner Set

9589480
Chrome
Toolzone 8pc Tubular Box Spanner Set Cover
Toolzone 8pc Tubular Box Spanner Set 6mm to 22mm

The Toolzone Box Spanner Set includes a useful tommy bar, allowing you to apply extra torque when needed, making it easier to loosen stubborn fasteners. It comes in a handy canvas storage wallet, ensuring that your tools are organised and easily accessible. The spanners are crafted from chrome vanadium with zinc plating, which enhances their weather resistance and durability. With sizes ranging from 6mm to 22mm, this set provides versatility for various tasks around your home or workshop.

What We Like
Includes tommy bar
Handy storage wallet
Weather-resistant materials
Versatile size range

Hilka 17900802 Metric Box Spanner Set

17900802
Silver
Confezione 1/S
Hilka 17900802 Metric Box Spanner Set Cover
Hilka 17900802 Box Spanner Set Metric (8-Piece)

The Hilka Box Spanner Set is an 8-piece metric collection designed to provide versatility and convenience for various tasks. Each spanner is made from durable zinc plates, ensuring longevity and reliability. The set includes sizes ranging from 6 x 7mm to 20 x 22mm, allowing you to tackle a wide array of fittings and fasteners. With its compact design, this set is easy to store and transport, making it an essential addition to your toolkit for home or professional use.

What We Like
Durable zinc plates
Wide range of sizes
Compact and easy to store
Versatile for various tasks
Reliable for home and professional use
#TOP 3

Silverline 589709 6-Piece Metric Box Spanner Set

589709
Silver
Silverline 589709 6-Piece Metric Box Spanner Set Cover
Silverline 589709 Box Spanner Metric Set 6pce 8 - 19 mm, Silver

The Silverline 589709 Box Spanner is a versatile tool set that includes double-ended spanners in sizes ranging from 8 mm to 19 mm. This feature allows you to tackle various nuts and bolts with ease, providing convenience for both DIY enthusiasts and professionals. The inclusion of a TMMY bar further enhances your ability to apply torque effectively, making your tasks simpler. With six different sizes, you can easily find the right fit for your needs, ensuring you can work efficiently without searching for the right tool.

What We Like
Double-ended design
Includes TMMY bar
Six versatile sizes
Convenient for various tasks
#TOP 4

EasyShopping247® UK Monoblock Tap Spanner Set

EasyShopping247® UK Monoblock Tap Spanner Set Cover
EasyShopping247®UK- Monoblock Tap Spanner Set with Tommy bar, 8-9 10-11 12-13mm Metric Spanner Set.

The EasyShopping247® Tap Spanner Set is designed for versatility and ease of use. It fits nearly all monoblock bolts, making it ideal for securing taps effectively. The double-ended spanners come in sizes 8/9 mm, 10/11 mm, and 12/13 mm, ensuring you have the right tool for different nut sizes. Its corrosion-resistant steel construction guarantees durability, while the included tommy bar allows you to access restricted areas effortlessly. This set is perfect for both DIY enthusiasts and professionals alike.

What We Like
Fits most monoblock bolts
Corrosion-resistant steel material
Double-ended for convenience
Includes tommy bar for access
Versatile for various tap nuts
#TOP 5

QWORK® 10-Piece Box Spanner Set

WD6278-N
Zinc Plated
QWORK® 10-Piece Box Spanner Set Cover
QWORK® Box Spanner Set, Tubular Spanners 6 x 7-20 x 22 mm with 2 Tommy Bars | 10 Pcs

The QWORK® Box Spanner Set is expertly crafted from zinc-plated carbon steel, ensuring resistance to corrosion and twisting. This means you can rely on its durability for your plumbing tasks. Designed specifically for fitting back nuts to monobloc taps, it simplifies your plumbing projects. With double-ended spanners, you can easily loosen or tighten nuts and bolts in narrow recesses, making those tricky spots more accessible. The set includes eight spanners of various sizes, providing versatility for different applications.

What We Like
Corrosion-resistant material
Ideal for narrow recesses
Versatile size options
Durable construction
#TOP 6

Monument 46mm x 50mm Double-Ended Box Spanner

MON308
Multi
Monument 46mm x 50mm Double-Ended Box Spanner Cover
Monument 46mm x 50mm Waste nut Box Spanner

The Monument Box Spanner is a versatile tool designed for loosening or tightening nuts and bolts in tight spaces. Its doubled-ended design makes it thinner and considerably longer than traditional sockets, allowing you to reach those awkwardly placed fasteners with ease. Made from bright plated steel, this spanner offers durability and a sleek finish. It also features holes that accept a Tommy bar, giving you extra leverage for those stubborn nuts and bolts. This makes it an ideal choice for plumbing, maintenance, and automotive repairs.

What We Like
Thinner and longer design
Ideal for tight spaces
Durable bright plated steel
Extra leverage with Tommy bar
#TOP 7

Faithfull Tap Backnut Spanner 27mm and 32mm with Tommy Bar

FAISPBOX2732
Brass
Faithfull Tap Backnut Spanner 27mm and 32mm with Tommy Bar Cover
Tap Backnut Spanner 27 x 32mm Tommy Bar

The Faithfull Tap Backnut Spanner is designed specifically to help you remove or fit brass and nylon tap backnuts on basins with ease. It comes with a handy tommy bar, which provides extra leverage and makes turning the spanner more comfortable and efficient. The spanner features two sizes, 27 mm and 32 mm, so you can work on different backnut sizes without needing additional tools. This makes the Faithfull Tap Backnut Spanner a practical and convenient tool for plumbing tasks around the home.

What We Like
Includes useful tommy bar
Fits 27mm and 32mm backnuts
Works on brass and nylon backnuts
Ideal for basin tap work
#TOP 8

DAKCOS 4PCS Metric Box Spanner Set

Metallic Silver
DAKCOS 4PCS Metric Box Spanner Set Cover
DAKCOS 4PCS Box Spanner Set with Tommy Bar,8-13mm Metric Tap Spanner Set,Tubular Box Spanner

The DAKCOS Box Spanner Set is a versatile tool designed for ease of use. With double-ended sizes ranging from 8-13mm, you can easily tackle various nuts and bolts. The durable zinc-plated surface ensures corrosion resistance, prolonging the life of your tools. Equipped with 120mm tommy bars, this set makes your work more convenient and reduces the effort needed for loosening or tightening. It is particularly useful for plumbing tasks, as it fits perfectly in narrow recesses, allowing for effective installation and maintenance of pipes and faucets.

What We Like
Durable zinc-plated surface
Includes convenient tommy bars
Perfect for narrow spaces
Versatile for plumbing tasks
#TOP 9

Gunpla 10-Piece Heavy Duty Box Spanner Set

#030722
Silver
Gunpla 10-Piece Heavy Duty Box Spanner Set Cover
Gunpla 10 Pieces Box Spanners Set with 2 Tommy Bars, Multi Size Tap Monoblock Professional Tubular Spanner Kit Metric 6x7mm – 20x22mm Heavy Duty Double Ended Box Wrenches Plumber Tools for Water Taps

The Gunpla Box Spanner Set features heavy-duty gauge steel spanners that are built to last, ensuring durability for years of use. Their double-ended design provides versatility, allowing you to tackle various tasks with ease. This metric set includes a range of sizes, making it ideal for most plumbing jobs. Additionally, it comes with practical tommy bars, enabling you to operate in tight spaces where traditional spanners may not fit. Overall, this set offers convenience and efficiency for any plumbing project.

What We Like
Durable steel construction
Double-ended for versatility
Wide range of sizes
Includes practical tommy bars
Convenient storage pouch
#TOP 10

Amtech K1150 6 Piece Box Spanner Set

K1150
Silver
Amtech K1150 6 Piece Box Spanner Set Cover
Amtech K1150 6 Piece Tubular Box Spanner Set with Tommy bar

The Amtech K1150 Spanner Set is perfect for tackling nuts and bolts in tight spaces. With six double-ended box spanners ranging from 6-17mm, you can easily find the right size for your task. The included 150mm Tommy bar provides added leverage for loosening or tightening stubborn fasteners. The satin finish not only enhances durability but also offers a comfortable grip, making your work more efficient. This set is an essential addition to any toolbox, ensuring you’re well-equipped for various jobs.

What We Like
Ideal for narrow spaces
Includes various sizes
Durable satin finish
Convenient Tommy bar included
Buying Guide Image

Frequently Asked Questions (FAQs)

1. What are box spanners used for?

Box Spanners Commonly made of steel tube, the box spanner is typically used for removing spark plugs. They normally feature a six-sided ring-type head that fits the nut that has been pressed out of the steel tube during the manufacturing process. They are turned using a T-bar passed through the two holes in the middle.

2. What is a tap spanner?

A tap spanner is a hand tool for adjusting the fixings on taps, sinks, basins and toilets. Sometimes called basin wrenches, sink spanners or plumbing spanners, professionals and DIY plumbers can use these helpful tools. Tap spanners have a tube shape designed for reaching fixings, nuts and bolts at awkward angles.

Editor's Notes

During our box spanner research, we found 306 box spanner products and shortlisted 10 quality products. We collected and analyzed 47,519 customer reviews through our big data system to write the box spanners list. We found that most customers choose box spanners with an average price of £7.63.

The box spanners are available for purchase. We have researched hundreds of brands and picked the top brands of box spanners, including Toolzone, Hilka, Silverline, EasyShopping247, QWORK.

Written by
Jennifer Fraser Avatar

Jennifer Fraser is a licensed contractor specializing in sales, maintenance, and kitchen, bathroom, and home appliances, tools, and utilities. She owns a store in Leeds where you can get any home and tool appliance. Jenny has a degree in literature, but she combines her knowledge and experience with her degree to publish DIY articles on solving home appliances issues to keep up the family enterprise.