about us

For more than 15 years, we have been selling high-quality hand tools. Just as long we are present with a cross section of our assortments on the trading platform Ebay. We supply private and business customers in many countries. With a persuasive selection of high-quality, professional hand tools we meet the interest of our customers. Our specialty is the individual equipment of mechanics, fitters, technicians, service vehicles, workrooms + workshops with modern high quality hand tools. 

A reliable, committed service, as well as the rapid, efficient processing of orders stands at the center of our actions. An honest and direct communication with our business partners is a matter of course for us. According to our understanding, an important basis for a trusting and successful cooperation. 

Bevore offering a product or adding it permanently to out assortment, we always occurs a careful quality and use test. Therefore, the tools offered in our assortment are always thoroughly tested in advance at our own workshop. This way, disappointments remain us and kept from you. We recommend the tool products in our assortment unrestricted to all customers and prospects. In the today's world of abundance, mass production and countless imitations, each comsumer should check closely. The origin, a high processing quality, optimal functionality as well as ergonomic design are always decisive drivers of making the right choice of tools. Our assortment is the latest and solid and wins over through an optimum serviceability. We offer you only high quality products, because these are favorable for you in the long term. Our tools increase the pleasure of manual work and thus contribute to your professional and business success.

To view a selection of our current assortment, please click directed to our Ebay-shop prime quality tools.

There you will find a cross section of the tool products sold by us. 
By special tool requirements, or your needs of whole-sale-units, please direct your written request via e-mail directly to our sales office.  Our email address

About screws
If the fastening tool accurately fits into the screw, the screw is hardly worn and can often be reused. Through the accurate fit the whole driving force can be transmitted onto the screw, enabling quick and efficient work. 


Longitudinal recess – SLOT
The slotted screw is probably one of the most widespread and well-known type of screw. It is used almost anywhere, for example in components of electric motors, in small electronics or as clamping screw for luster clamp.

Cross recess / Phillips recess® /  PH
J.P. Thomas invented and patented this mode of driving for screw heads in 1933. Since production at that time was too expensive, Thomson sold the patent to Phillips; hence the name Phillips for this cross-head screw is common. Phillips kept developing this mode of driving farther and therefore renewed the patent in 1949. This mode of driving consists of two slots, where one slot is applied vertical and one horizontal to the center of the screw head. The edges of the cross recess deepen conically towards the center of the crew head. An improved type of the cross-head screw is called "Phillips Pozidriv“.

Cross recess – Phillipps pozidriv® / PZ
Pozidriv is the further development of the recess screw. In contrast to recess screw, slots are not tapered downwards but proportional to each other. Moreover "diagonal-slots" were impressed to increase the strength of fit of the screwing into the screw. The pozidriv screws are very popular in crafts and in construction. Pozidriv screws are often used in mechanically screwed structures, such as in interior accessories.

Hexagon socket or socket screw / Allen screw / HEX (HEXAGONAL)
In this type of screw a hexagon socket is recessed in a cylindrical screw head. In comparison to the hexagon screw less space for the head is needed. In comparison to an equal-sized Phillips screw, an Allen screw can absorb about ten times the torque. With this screw heavier parts can be screwed tightly to one another and are easy to solve again for inspections and maintenance. 

Allen screws are also suitable for connecting screws, where the screw heads are construction-conditioned difficult to access. Allen screws will sink space-saving, if overlaying screw heads interfere. Hexagon socket key sets are inexpensive and compact in size. In addition, hexagon socket keys can be easily extended with an extension tube to produce higher tightening or loosening torques. These properties make the hexagon socket screw to the preferred screw in automotive engineering, tool and mechanical engineering. 

On a bicycle hexagon sockets are often used because the tool kit can be kept small. The cheap key can be cost-settled by the manufacturer by constructions kits, for example for self-construction furniture. When using the screw type on commodities the round shape has the advantage that textiles can hardly hook on to it and therefore the risk of injury is low. 

A disadvantage of the hexagon socket is that dirt and water are able to accumulate in the cavity and cause corrosion. However, a multiplicity of screws in stainless steel is available on the market, the so-called INOX.

Torque is an advanced combination of Allen and Phillips screws. It aims to combine both advantages of the typed of drive and is preferably used with countersunk head screws. At first glance, the mode of driving of torque recalls of a six-pointed star. However, the pips /corners are rounded and match a wave-like star. Torque screws with locking pin serve to protect technical devices from unauthorized opening and abuse.

Torx mit Stift

Tri-Wing® also known as TriWing
Screw safety profile with three flanks / wings. Through the "exotic" form of this screw head impulsion, the layman should not have the possibility to open these screws. This profile finds mainly use in the household technique (kitchen machine, hairdryer, fan heater) and also in the aerospace/ military engineering. Licensor for this security profile is the Phillips Screw Company. The shape is reminiscent of a propeller, whose broad wings do not point to the center. The useas a security screw is no longer possible these days, as appropriate screwdrivers are commercially available in Europe since about 1995.


A newer version of the Tri-Wingwith four flanks /wings is called Torq-Set. Special safety profile, which is due to the asymmetrically offset flank to the center (offset cross) with lay tool barely to solve. If inappropriate tools are used, this security screw gets easily destroyed and can no longer be released.


Clamping screw or Snake-Eyes
Safety profile with two parallel holes in the screw head. The appropriate tool profile exhibit 2 parallelfour-sided "noses" that border in the holes. The clamping profile is of very little importance for the area of crafts and industry. The advantage of this profile lies in the relatively smooth surface of the screw head. This is only interrupted through the twosmall circles and apart from that solid. At the same time, it prevents an over-tightening of the screw. The power transmissionis associated with a high notch effect. For the transmission of a high torque this clampingprofile is completely unsuitable.


Robertson or Square
The Robertson screw is a screw which head is provided with a recessed quadratic inner square profile. In Europe, this execution was rarely spread, but in Canada and the USA it is pretty common. The output of the screw driver is an external square. Similar to the hexagon socket there is the Robertson screwdriver with angled screwdriver blade as hex keys. The Robertson propulsion is named after its inventor, the Canadian Peter L. Robertson, who invented these screws and the appropriate screwdriver in 1908 and applied for a patent. Screwdriver cannot easily slip out through this shape of the screw head and make sure that a good adhesion is achieved. Therefore this system was practicable and much more suitable for industrial use than slotted screws. This also convinced the Ford Motor Company, one of the first customers of Peter L. Robertson. More than 700 Robertson screws were plugged in the Ford Modell T.


The meaning of CE marks and GS marks on products

Requirements for using the CE mark and the GS mark
The main difference between the two marks is that the CE mark is legally required through unified, so-called harmonized European law for certain industrial products. In contrast, the GS mark is a system based on a German rule safety sign, which is affixed by the manufacturer on a voluntary basis in compliance with legal requirements on the product.

CE mark
The CE mark is required by European directives.
Only if a corresponding directive requires the CE mark on a certain product, is it permitted (and also essential) to affix the sign.
For example, food or books cannot be provided with the CE mark.


CE = Conformité Européenne =
= European Conformity

The CE mark expresses that the product on which it is mounted complieswith all requirements of EC Directives for this product.

The CE mark is not primarilya consumer indicator. It mainly serves as "EU passport" for this product. This means that this product may be marketed in all member states withinthe EU market unless it is obvious that the CEmark has been affixed improperly.

The CE mark is applied usually by the manufacturer himself. Together with a so-called EC declaration of conformity, he certifies the fact that he has fulfilled the essential health and safety requirements of the relevant EC directives in the manufacturing process of the product. For sunglasses and drills such a manufacturer's EC declaration is sufficient.

If the risk potential is high, e.g. forrespiratory equipment or climbing harnesses, further EC type-examination of the product are necessary from additional measures to checking each product by the notified position. This is indicated to the consumer on the CE mark itself and the 4-digit identification number of the notified position.

GS mark
The Product Safety Act (“Produktsicherheitsgesetz”, ProdSG) permits the voluntary use of the GS mark.


Tested in accordance to the Product Safety Act

The GS mark can be affixed to ready-to-use products (that means the products aresuitable for use without adding further parts, such ashand tools or power tools).

The GS mark can also be used for products that do not need to be provided with a CE mark, such as furniture.

The manufacturer may provide the product with the GS mark only if a type examination was carried out and a regular monitoring of the production is executed by the so-called GS body. In this monitoring, the GS body regularly visits the production plant, examins samples of the products and pays attention to the quality assurance.

During the type examination for the award of the GS mark, additional essential safety requirements are formulated and investigated, assuring the prevention of potential hazardsfor the consumer. E.g. for a kettle, not only the electrical safety must be assessed, but also the plastic material used. This material must not give off pollutants to the boiled water.

The German institute for standardization DIN
The remit of DIN is to encourage, organize, steer and moderate standardization and specification activities in systematic and transparent procedures for the benefit of society as a whole, while safeguarding the public interest. The results of DIN's work serve to advance innovation, safety and communication among industry, research organizations, the public sector and society as a whole, and to support quality assurance, rationalization, occupational health and safety, and environmental and consumer protection. DIN publishes its work results and promotes the implementation of these results. Some 30,000 experts from craft and industrial enterprises, professional associations and institutes at universities and colleges contribute their skills and experience to the standardization process which is managed and coordinated by the DIN staff of around 400. By agreement with the German Federal Government, DIN is the acknowledged national standards body that represents German interests in European and international standards organizations. Ninety percent of the standards work now carried out by DIN are international in nature. A registered non-profit association, DIN has been based in Berlin since 1917.


What is a DIN-norm?
A DIN-norm is an under direction of a working committee in DIN German institute for standardization, an earned voluntary standard, in which material and immaterial items are unified. DIN standards developed based on suggestions and through the initiative of interested parties. Usually this is the German economy, where consensus for example on dimensions, quality, material, design and finish, is produced by all those who are involved. Internationally developed standards are for example ISO standards or the European standards EN. DIN standards are based on the results of science, technology and experience and serve the general public. They are developed in the standardization process. DIN standards are recommendations and can be applied, however, they must no be used. Basically, there are „private rules with recommendation character“. As such they can however as well drop behind the stand of the technique. But they have the assumption that they reflect the state of the technique. This assumption can be rebutted by expert evidence. Occasionally however, the legislature makes the existence of appropriate norms advantage and defines the forcible application by laws or regulations. Of course it is free to resort for everyone, by announcements, equipment specifications, building specifications and technical requirements on the existing standards and to use the defined written descriptions as set points. The totality of the DIN standards is referred to as German standards. International and European standards which have been taken over by the DIN are also referred to as DIN standards and are part of the German standards. The standard is constantly changing. Per annum appear over 2000 new DIN standards. Since at least every five years is reviewed regularly checked every norm whether it is still needed and whether it corresponds to the current state of technology. The standard remains either unchanged, is withdrawn or revised. The German standard currently consists of about 33,149 documents. Increasingly, the DIN standard work of national acquisitions International and European standards sets together. The share of purely national standards decreases in contrast. Today there are only narrow 15 percent pure German standards.

TÜV (Association for Technical Inspection)
“TÜV-tested” in German is colloquially a seal of quality for technical testing by a German TÜV company. The description “TÜV-tested” may only be used by a technical inspection association or a sub company of the TÜV. Anything else would be misleading of the consumers and fulfilling the definition of unfair competition.

In Germany the TÜV companies are predominantly organized in three big Holdings, TÜV South, TÜV Rhineland and TÜV North. There are also the concern independent companies, TÜV Thuringia and TÜV Saarland. All companies consider sovereign tasks in the area of automobile monitoring, the driving license system and the equipment and product safety.

Product testing
Manufacturers document the quality of their products by neutral and recognized approval marks, such as the approval mark of the German TÜV.

Tüv Kopie

Experts of TÜV accompany products from development to marketing approval in Germany, Europe and overseas. The German TÜV companies check and certify the security, usability and quality of technical facilities, capital goods, consumer goods for manufacturers and trade. The tests are carried out by known criteria, standards and norms.

Some types of testsare:
- Norm - tests
- Chemical tests
- Data performance tests
- Electrical tests
- Mechanical tests
- Product -Safety - tests
- Tests ofserviceability

The world is a global market. Yet, for safety and quality certain country-specific laws, directives andstandards must be fulfilled by products. TÜV takes over for producers and trade, to conduct legal required tests and certification in the various countries in which the products are to be sold. This ensures the smooth approval and marketing of products in domestic and international markets through the TÜV. Rising commodity prices, high costs of transport, country-specific environmental and disposal regulations, as well as special customer requirements can significantly reduce trade margins. Cultural and language barriers in other countries increase the difficulty of trade. Thus, increasing price pressure often has the consequence that unknown subcontractors are used. Thereby, the risk that inferior quality and often hazardous materials are used in the manufacturing of products is increased. Identifying and preventing the sale of these products, is an important task of the TÜV tests. The TÜV - companies offer safety evaluations of products for holistic risk avoidance. In many cases, numerous national and international norms and laws, as well as high quality requirements of customers, makeprofessional security checks to a "must" for manufacturers. But also voluntary tests can secure a crucial competitive advantage for manufacturers and retailers. The German TÜV companies are specialists in the most diverse safety tests, as well as for the current standards in legal norms. Manufacturers involve experts from the TÜV as early as possible in the process of product planning and product design. Thus, manufacturers improve their chances for a convincing quality product that can be proven and sold successfully in the global marketplace.

How did it come to the foundation of TÜV?
In the early 19th century regular explosion of steam boilers endangered working people, the environment as well as factories and farms. Back then, boilers were used for the drive of machines and equipment as there were no electric motors. Large boilers were in use in the textile industry, in mills, in large forging (steam hammer), in the mining industry for the drainage, and in the operation of water pumps, and of course in locomotives and traction engines.

In 1848, there was a "regulation to supervise the boilers". The country ordered special surveillance officers, technically qualified engineers and technicians, as boiler inspectors. In a parallel developmentbased on insight and liability issues, large factory enterprises deployed “monitoring teams to ensure the safety” on their own or in association with others companies with special monitoring engineers.

In 1866 the Technical Inspection Agencies of the TÜV was born.
The reason for the foundation of the company with headquarters in Mannheim was to “Monitor and ensure the quality of steam boilers”. Founders and members were 21 steam boiler operators with a total of 37 boiler plants. Until the 1880s, there were more ups of steam boiler monitoring associations in many cities and regions.

© Michael Merta Werkzeugtechnik 2020