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This section provides an overview for double open-end spanners as well as their applications and principles. Also, please take a look at the list of 15 double open-end spanner manufacturers and their company rankings. Here are the top-ranked double open-end spanner companies as of December, 2024: 1.SNA Europe, 2.GEDORE, 3.HOZAN TOOL INDUSTRIAL CO., LTD..
Table of Contents
A double open-end spanner (wrench) is a tool used primarily for tightening and loosening hexagonal bolts and nuts.
The part that grips the bolt or nut is called the "bore," and the width of the U-shaped opening is called the "two-sided width. A single-end spanner has a bore on only one end, whereas a double open-end spanner has bores on both ends.
The distinction between a wrench and a spanner is not clearly defined; "spanner" is the term used in British English, while "wrench" is the equivalent term in American English.
The double open-end spanners are tools used in various applications, from general DIY to professional workplaces. It is mainly used for tightening and loosening hexagonal bolts and nuts. They are useful in all kinds of situations, including machinery and equipment, precision instruments, vehicles, engines, construction, furniture, and DIY.
The double open-end spanner has a U-shaped open-end so that it can be inserted from the side. Therefore, they are used for working on bolts and nuts in tight spaces. The double open-end spanner is not a tool suitable for applying large force because it supports and tightens at two points. Therefore, it is generally used for temporary fastening.
Most double open-end spanners have two different sizes of bore widths at both ends. Compared to one-ended wrenches, the number of wrenches to be kept together is reduced, making them easier to carry and manage.
Double open-end spanners use the "leverage principle" to tighten or loosen a bolt or nut by generating a large force with a small force. The fulcrum is the center of the bolt or nut. The force point is where the hand holds the double open-end spanners, and the action point is the angle between the bolt or nut and the spanner.
By holding and turning the end of the double open-end spanners, the bolt or nut can be easily tightened or loosened. The double open-end spanner has two points of contact with the bolt and nut, while the wrench has six points of contact. As a result, the wrench can apply more force to tighten the bolt and nut.
Both ends of the handle have a bore section that grips the bolt or nut. The two side widths are fixed.
This is a thinner spanner than usual. It is used for work in tight spaces or when the bolt or nut is thin. It is not suitable for large bolts and nuts but is useful for small bolts and nuts.
Using double open-end spanners that suit your work purpose will affect the work efficiency, safety, and accuracy of the finished product.
The part that clamps the bolt or nut is fixed, so select a wrench that matches the size of the bolt or nut. The size is not the diameter or radius, but the distance between the "two side widths" where the double open-end spanners fit the bolt or nut.
The size is usually written in meters on the handle. However, in rare cases, some are listed in inches, so it is recommended to check.
Since double open-end spanners are used frequently, it is convenient to have several sizes of double open-end spanners in a set.
There are wrenches (eyeglass wrenches) with a circular bore. Since the bore touches the entire circumference of the bolt or nut, it is difficult to dislodge the bolt or nut, and it is difficult to tamper with.
There is also a one-ended wrench with a bore on only one side, and a combination wrench consisting of both a wrench and a wrench.
To loosen a bolt or nut that is stuck in a hard and tight position, oil it and leave it for a while before turning it. Also, if the angle is not good enough to reapply the wrench as it is, turning the wrench over will change the angle at which the two-face width is applied, allowing the wrench to be reapplied.
*Including some distributors, etc.
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HOZAN TOOL INDUSTRIAL CO., LTD., established in 1946 in Naniwa-ku, Osaka, Japan, is a manufacturer and supplier of electronics and bicycle tools. Their product range includes soldering irons for electronics assembly, various types of multimeters for electrical measurements, pliers for wire manipulation, diverse screwdrivers for fastening tasks, and wire strippers for precise wire preparation. Additionally, they also offer chemical products such as anti-rust oils, freezer sprays, cutting oil, and dusters.
GEDORE is a German manufacturer of standard and industrial tools that was founded in 1919 in Remscheid, North Rhine-Westphalia. The company produces various hand tools such as wrenches, chisels, and hammers, as well as torque tools including torque multipliers and testers. It also offers specialty tool sets, such as electrical and plumbing toolkits. GEDORE maintains a network of subsidiaries and sales partners in more than 70 countries, with production facilities in South Africa, Brazil, England, and Austria.
TOP Kogyo Company, Ltd., a company founded in 1939 and headquartered in Sanjo City, Japan, is a manufacturer and supplier of hand tools. The company's product portfolio includes adjustable wrenches, PVC cutters, pliers, riveters, and various other hand tools. Hand tools find applications in various industries, including plumbing, metalworking, woodworking, HVAC (Heating, Ventilation, and Air Conditioning), and DIY/home improvement. The company also offers customer services, including customer support, product information, and a product catalog. The company is ISO 9001:2015 certified for its quality management system.
BETA UTENSILI S.P.A., established in 1932, is an Italian manufacturer and supplier of workshop tools and industrial equipment, headquartered in Sovico, Monza Brianza. The company's product range includes over 16,000 tools for professional mechanics, catering to car repairs, industrial maintenance, and more. Among their offerings are the modular workshop equipment lines of Racing System (RS) C55 and Beta C45PRO, which include workbenches, modules, and more. They also provide various tools such as measuring and marking tools, cutting and general maintenance tools, plumbing tools, and power tools. These tools and equipment find applications in diverse industries, including automotive, aerospace, and mechanical engineering.
King Tony Tools Co., Ltd. founded in 1976 and has its headquarters in Taichung City, Taiwan, is a manufacturer of hand tools, pneumatic tools, and automotive specialty tools. Their main products include socket sets, wrenches, screwdrivers, pliers, impact tools, and torque wrenches. These tools are used in various automotive, aerospace, construction, and manufacturing industries. They offer tool storage solutions, tool trolleys, and workbenches to provide efficient and organized storage. King Tony Tools Co., Ltd. also provides customized tool solutions for specific customer needs and requirements.
BSK is a manufacturer of safety tools designed for use in hazardous areas and ATEX zones, headquartered in Gipuzkoa, Spain. The company produces non-sparking tools, such as adjustable wrenches, axes and picks, hand saws, and hammers. It also offers pneumatic chisels, sockets, valve handles, and tool sets. These safety tools are explosion-proof, non-magnetic, corrosion-resistant, and manufactured from special aluminum-bronze and beryllium-copper alloys to eliminate the risk of sparks in hazardous environments. The company caters to diverse sectors, including oil and gas, chemical, pharmaceutical, bomb disposal squads, and hazardous materials handling.
STUBAI is a manufacturer of tools and machines for the woodworking sector that was established in 1960 and is headquartered in Fulpmes, Austria. The company produces a wide range of tools and machines, including spanners and wrenches, woodworking tools, woodcarving tools, woodturning tools and construction tools. Its products suchas saw blades, planers, and mortisers are used by a number of woodworking professionals and hobbyists around the world. The company also provides a range of services, including sales, training, and support.
Abingdon King Dick is a manufacturer of hand tools and vintage-style collections of modern tools founded in 1856 and headquartered in Birmingham, UK. The company’s product line includes wrenches and spanners, sockets, screwdrivers, and pliers. It also offers insulated tools, tool sets and storage, tool controls, and various engineering tools. The company’s products cover metric, AF (SAE), and traditional British sizes like BSF, BSW, and BA. It also caters to specialized needs, including live-line VDE, torque, tethered tools for safe high-altitude work, and tool control foam inserts, all in adherence to European DIN standards.
SNA Europe, founded in 1850 and headquartered in Paris, France, is a manufacturer of hand tools. The company provides hand tools for the professionals working in the automotive, metal cutting, construction, and other industries. It has invented some other essential tools, such as the adjustable wrench, multi-component handles, and sandflex saws. With over 400 registered patents and multiple awards, the company offers more than 24,000 products and resources like tool finder on its website.
MARUTO HASEGAWA KOSAKUJO INC, established in 1924 and based in Niigata, Japan, is a manufacturer and supplier of specialized work tools. The company's product range includes High Grade Hi-leverage Side Cutting Pliers, High Grade Long Nose Cutting Pliers, Tweezers with Cation Coating, Multipurpose Straight Tweezers, and Precision Tweezers (Anti Magnetic) (Anti Acid). These tools are designed for precision tasks across various industries. They primarily serve the electronics, manufacturing, and assembly sectors. Besides its product offerings, the company provides services such as tool customization, user consultation, and maintenance.
SUPER TOOL Co., Ltd., established in 1918 in Japan, is a manufacturer of general and specialized tools for building and bridge construction, civil engineering, shipbuilding, and similar industries. The company offers an extensive line of specialty tools used by tradespeople and skilled workers that includes ratchet wrenches, clamps, portable cranes, jig clamping tools, piping tools, and more. SUPER TOOL Co., Ltd. also offers custom tool design and production as well as custom machinery production for commercial clients.
TOPTUL is part of ROTAR Group, founded in 1981 and operating in Taichung, Taiwan. TOPTUL is a manufacturer and distributor of tools and hardware equipment around the world. TOPTUL is ISO 9001:2008 certified. TOPTUL products include master tool sets, wrenches, torque wrenches, hand sockets, bit sockets, socket accessories, impact sockets, pneumatic tools, power tools, hexagon, star key tools, screwdrivers, bits, power bits, pliers, hammers & striking tools series, tool storage, tool display, auto tools, VDE insulated & general electrician’s tools, TOPTUL accessories, and other tools.
ABM Tools founded in1992, is in the business of manufacturing & exporting different types of industrial tools and machine tool accessories based in India. The company has different CNC machines, grinders, shapers, power presses and others. In inspection workshop there are numbers of inspection instruments like master gauges, profile projector, 3D coordinate measuring machine etc., to meet a wide range of needs. Their products are being exported to major countries around the world.
Eastman Hand Tools, a part of the Eastman Group, began its operations in 1989, as a manufactuer of utility products in accordance with international standards (DIN, JIS, ANSI), based in India. The company’s state-of-the-art infrastructure empowers it to produce over 24 million tools per annum, catering to a wide range of industries. Their product portfolio encompasses a wide range of offerings, including hand tools, OEM tool kits, and cleansing solutions. With touch points in 35+ countries across USA, Europe, Asia, and the CIS region, including key markets like Russia and Ukraine.
Ranking as of December 2024
Derivation Method| Rank | Company | Click Share |
|---|---|---|
| 1 | SNA Europe |
33.3%
|
| 2 | GEDORE |
33.3%
|
| 3 | HOZAN TOOL INDUSTRIAL CO., LTD. |
33.3%
|
Derivation Method
The ranking is calculated based on the click share within the double open-end spanner page as of December 2024. Click share is defined as the total number of clicks for all companies during the period divided by the number of clicks for each company.Number of Employees
Newly Established Company
Company with a History
*Including some distributors, etc.
| Country | Number of Companies | Share (%) |
|---|---|---|
|
Japan
|
5 | 35.7% |
|
Taiwan
|
2 | 14.3% |
|
India
|
2 | 14.3% |
|
Germany
|
1 | 7.1% |
|
Italy
|
1 | 7.1% |
|
Spain
|
1 | 7.1% |
|
Austria
|
1 | 7.1% |
|
United Kingdom
|
1 | 7.1% |
66 products found - Page 2
66 products - Page 2
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