Specialize in industrial tools and machine tool accessories since 1993

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tools PRECO
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tools PRECO

Since the establishment, Qingdao preco imp. & exp. co., ltd. has been providing quality and we are constantly improving our manufacturing capacities to provide better products. Qingdao preco imp. & exp. co., ltd. has a team of top-notch science and technology talents.
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Company Advantages
1. The source of raw materials: before PRECO comes out, it is processed from high quality raw materials. These materials are sourced from several different places within and out of the region. It has guaranteed toughness so that it won't fracture or chip
2. Research & Development are the core competition of Qingdao preco imp. & exp. co., ltd.. Its graduation and dimension can be customized
3. The product has a reasonable structure design, thus it is able to withstand a certain weight or pressure without damage. Scratches resistance is one of the most important mechanical characteristics of this product
4. The product is well-known for its abrasion resistance. It has the ability to withstand the effects of abrasion, for example, repeated wear and tear, rubbing, scraping, etc.

Product Information

DIN335 3 Flute Countersinks,90º
DiameterShank Dia.Overall LengthHSS
(mm)(mm)(mm)Item No.
4.34.040.0353-0043
4.84.040.0353-0048
5.04.040.0353-0050
5.34.040.0353-0053
5.85.045.0353-0058
6.012.045.0353-0060
6.312.045.0353-0063
7.012.050.0353-0070
7.312.050.0353-0073
8.012.050.0353-0080
8.312.050.0353-0083
9.412.050.0353-0094
10.012.050.0353-0100
10.412.050.0353-0104
11.512.056.0353-0115
12.412.056.0353-0124
13.412.056.0353-0134
15.012.060.0353-0150
16.512.060.0353-0165
19.012.063.0353-0190
20.512.063.0353-0205
23.012.067.0353-0230
25.012.067.0353-0250
26.012.071.0353-0260
28.012.071.0353-0280
30.012.071.0353-0300
31.012.071.0353-0310
37.012.090.0353-0370
40.012.080.0353-0400
50.012.080.0353-0500




DIN335 3 Flute Countersinks Sets(in wooden case),90º
Pieces/SetSizeHSS
Item No.
55,6,8,10,12mm353-0505
515,16.5,20.5,23,25mm353-0510
66.3,8.3,10.4,12.4,16.5,20.5mm353-0515
105,6,8,10,12,15,16,20.5,23,25mm353-0520

Packing


Individual sizes are packed in good quality of plastic boxes and sets are packed  in wooden boxes .





Company Features
1. Since the establishment, Qingdao preco imp. & exp. co., ltd. has been providing quality and we are constantly improving our manufacturing capacities to provide better products. Qingdao preco imp. & exp. co., ltd. has a team of top-notch science and technology talents.
2. Through the use of high-tech means, PRECO has made great achievements.
3. With the development of society, PRECO has been emphasizing the importance of high quality of . As one of the most effective firms, Qingdao preco imp. & exp. co., ltd. strives to bring a globally famous brand. Call!
Materials Requirement Planning (MRP) is one of the main factors in PRECO production. Materials used in the product are required to be tested in terms of strength, mechanical properties, and durability. Dezheng's paper products meet the stringent environment standards - FSC CoC
The mechanical parts of PRECO have undergone production processes such as metal material preparation, cutting, welding, surface treatment, drying, and spraying. Dezheng offers a wide range of printed paper products, including notebooks, cards, scrapbooks, paper packaging, poster, etc
The materials of PRECO have been tested to meet the expected mechanical performance. Its strength, ductility, and toughness have been tested.
PRECO meets the workmanship requirements for machinery. Its circuits, including main circuit, control circuit, and local circuits are all designed accurately with high efficiency. Dezheng owns a well-equipped factory of 1,500 square meters
The quality of PRECO will be authenticated using professional inspection approaches, including visual inspection, non-destructive inspection, and metallographic examination. Dezheng can refund the sample fee if the order meets the MOQ requirement
The product is known for its durability. It is able to withstand a given number of cycles and maintain its performance after it runs for a long time. With advanced testing machines, Dezheng will do rigorous in-house testings on all products
No errors occur during its operation. It has been tested for accuracy and Its slight physical differences are mathematically corrected in the computer operating system. Dezheng's paper products meet the stringent environment standards - FSC CoC
The product has good heat dissipation performance. Its powerful cooling system is beneficial for maintaining the proper temperature of mechanical components for better operation. Dezheng has strong production capacity, reaching an annual output of RMB 140 million
The product features the desired stiffness. It is resistant to different failure modes thanks to its mechanical properties such as yield strength and hardness. Dezheng owns a well-equipped factory of 1,500 square meters
The product has remarkable pressure resistance. It is made of composite metal materials such as stainless steel and alloy which feature excellent hardness and anti-impact resistance. Over 20+ years of development, Dezheng now has 10,000 customers worldwide
The product is reliable in operation. It can constantly perform its tasks while holding the highest level without any failure. Dezheng offers professional and cost-effective custom printing service
The product is found to run very smooth. It does not bother people by generating unwanting buzzing noises when operating. Dezheng's products are approved by TUV certification
Its benefits of reducing costs and maximizing profits have encouraged many manufacturers in the industry to adopt this product in production. Dezheng has got the import and export license as well as the ISO9001:2008 certifications
Having this product definitely speeds up the production time. Because no thinking is needed by it, there is better repeatability and less human error. Dezheng has manufactured a variety of high-quality printed paper products for over 20 years
Operators are more dedicated to their work when they use this product because they encounter less fatigue and tiredness. Dezheng owns a well-equipped factory of 1,500 square meters
During its operation, it is safe for people. No potential dangers such as electric leakage, fire hazard, or overvoltage danger will occur. With advanced testing machines, Dezheng will do rigorous in-house testings on all products
Operators who use this product generally encounter production conditions and productivity that are much improved from the past. Dezheng offers professional and cost-effective custom printing service
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