Specialize in industrial tools and machine tool accessories since 1993


Trade Terms
Supply Ability
Qingdao or any other main port in China
T/T,L/C,Western Union,Moenygram,Paypal,etc
Packaging Detail
in plastic box
by air or by sea
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Product Details
With the pursuit of excellence, PRECO is committed to showing you unique craftsmanship in details.tool accessories, manufactured based on high-quality materials and advanced technology, has reasonable structure, excellent performance, stable quality, and long-lasting durability. It is a reliable product which is widely recognized in the market.
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Company Advantages
1. Many of come from world-class designers.
2. The product will never be out of shape. Its heavy-duty components and parts are perfectly designed to withstand extreme industrial conditions.
3. This product drapes neatly and sets without any wrinkles without sagging or projecting out and will be well balanced when on the wearer.
4. The product plays a significant role in the modern household and workplace. It greatly helps improve the overall efficiency with regards to living and working.

DIN376 BSW/BSF Spiral Point Machine Taps
SizeCutting LengthOverall Length


packed  in plastic boxes


  • ◪  Used in making threads in a hole to insert a fastener to hold two mating parts together.

Product Message

Company Features
1. As a main provider for , Qingdao preco imp. & exp. co., ltd. is deeply trusted by customers.
2. Our company has an assortment of bright and talented R&D people. They can draw on their expertise accumulated over many years to develop powerful products.
3. We are committed to reducing the impact of our activities on the environment. We achieve our goals by lowering CO2 emissions, improving the recycling rate, and re-using materials. Understanding the importance of environmental sustainability, we have set the ecological goal of preventing contamination of our local environment. Sustainability is embedded in our operational practices. We have made great efforts in energy efficiency and pollution reduction. We also have embedded sustainability in culture.



Products:   Aluminum Hard Cd Case

Material: 5-15mm Fireproof Plywood

Accessories: Hardware/Alumunium/Foam

Dimensions: Customized

Usage: Transportation/Storage/Audio Show/Exhibition

Color: Black/Cumtomized


Fire-proof & Water-proof:Yes

Heavy duty:Yes

Classify:Road Case,Rack Case,TV Case,DJ Case,Lighting case,Speaker Case...


RK Flight Case                                                             



1.Rack Cases--Amplifier/Effect U Rack Case
2.Plasma TV Cases--LCD/LED TV Panel Case                                          
3.Utility Trunk Cases--Storage/Exhibition/Trade Show/Transportion Flight Case
4.DJ Cases--DJ Mixer/CDJ/Turntable Case & DJ Coffin
5.Stage Lighting & Speaker Cases--Moving Head& Par Light/ Speakers
6.Musical Instrument Case--Guitar/Board/Keyboard Flight Case/Road Case
7.Others RK Flight Cases--Drawer Case/ Cosmetic Case/ Storage Case

8.ABS/Aluminum/WoodenFlight Cases/Road Cases





* Beefy, Stackable Ball Corners 

* Double Anchor Industrial Rivets 

* Recessed, Industrial Grade Latches

* Recessed, Industrial Grade Handle

* Industrial Grade Rubber Feet

* Premium 3/8 inch Vinyl Laminated Plywood

* Tongue and Groove Locking Fi

* ATA 300 Rating




Why purchase from RK                                       




1. Reliability  




We have been designing and manufacturing flight Pipe and drape for near 20 years. Our leading design teams and strict quality control systems ensure each product from RK is reliable and ideal deals. 




2.Faster Deliver 


Standard cases can be finished within 7days and those custom-made within 8 days.




3. Competitive Price 




We have our own factory and massive production line. This ensures that we can procure all materials at much lower price than our competitors. 





         Welcome To Visit Our Factory



             Feel free to contact us!               






Product Description

 14-Piece 1/2-Inch Drive Jumbo Crowfoot Wrench Set
Size:1-1/16, 1-1/8, 1-3/16, 1-1/4, 1-5/16, 1-3/8, 1-7/16, 1-1/2, 1-5/8, 1-11/16, 1-3/4, 1-13/16, 1-7/8, 2 inch
Made from forged and hardened steel
Chrome plated finish resists corrosion
Use with any 1/2 in. drive ratchet, extension, or torque wrench
QTY:1000 sets

The design of PRECO follows many principles. They are operation accuracy and repeatability, friction management, etc. It has a smooth surface, which makes it extremely easy to clean
The assessments of PRECO are performed. They may include the taste and style preferences of consumers, decorative function, aesthetics, and durability. This product is known for its strong anti-corrosion property
The design of PRECO involves several factors. These factors include part tolerances, size limitations, materials selection, mechanical analysis, function realization, etc. Due to its outstanding fatigue resistance, this product can last for a certain period of time
PRECO is manufactured based on sound design/engineering principles. Careful consideration must be given to the surrounding climate, maintenance procedures and control systems. Its thicknesses can be customized according to needs
Production of PRECO involves the following main steps. It must be stamped, coated, painted, dried, and polished by adavanced machines. This product is notable for excellent chemical stability
This product has functional safety. Possible failures or faults which could lead to a hazard are analyzed in detail in the manufacture, hence they are eliminated or reduced in use. This product is known for its strong anti-corrosion property
This product is highly breathable. Its fabrics allow air to move around freely and the moisture is released quickly, which creates a breathable environment. This product is known for its strong anti-corrosion property
This product features wear comfort. Relevant knowledge such as skin and senses, sensations and fabrics, psychological factors, and overall comfort perception is successfully applied in its material selection. Thanks to its tensile strength, this product is less likely to fracture and breakage
The product has the advantage of excellent durability. It has been processed under precise machines and workmanship which can enhance its strength and stability. It is the best material for many industries including petroleum chemical, metallurgy, pharmaceutical machinery, and construction
This product features good moisture management. Its fabrics allow the transfer of perspiration from the skin to the atmosphere, which regulates the body temperature and maintains heat balance. This product is characterized by its exceptional dimensional tolerances
The product is designed to orient to users. Its functions and practicality are created according to the user’s postures. This product has the advantage of excellent heat resistance
The use of this product offers great flexibility to manufacturers in terms of investment allocation, such as shifting the investment in labor to product development. It has the desired flexibility, thus it is easy to cut and utilize
The use of this product is conducive to meeting the needs of social manufacturing. It not only increases the output rate, but also reduces labor costs. Thanks to its tensile strength, this product is less likely to fracture and breakage
Most of our customers use it in the mechanical equipment to solve the medium leakage problems to save energy. This product has shown its supreme magnetic property
Thanks to its easy operation, it greatly reduces time waste and allows people to start their work and tasks at the fastest speed. Thanks to its tensile strength, this product is less likely to fracture and breakage
Especially suitable for people with skin allergy, skin allergy or itching. It is perfectly great for plumbing applications
People who used it for half a year said there is no aging, deformation or even extrusion damage occurs in this product. This product features excellent high-temperature resistance
Product Message
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