Specialize in industrial tools and machine tool accessories since 1993


AI - Page Sitemap


PRECO step step drill manufacturers engineering

PRECO step step drill manufacturers engineering

PRECO step step drill manufacturers engineering

Trade Terms
Supply Ability
Any main ports in China
T/T,L/C.Western Union,Paypal,Moneygram,Payment for online orders
Packaging Detail
1pc packed in 1 palstic tube
By sea or by air
Get Latest Price
Get the latest price
Quantity Needed:
Product Details
PRECO adheres to the principle of 'details determine success or failure' and pays great attention to the details of carbide cutting tools.PRECO insists on the use of high-quality materials and advanced technology to manufacture carbide cutting tools. Besides, we strictly monitor and control the quality and cost in each production process. All this guarantees the product to have high quality and favorable price.
  • news-PRECO step step drill manufacturers engineering-PRECO-img
Application Scope
PRECO's tool accessories can be used in a variety of situations.With many years of practical experience, PRECO is capable of providing comprehensive and efficient one-stop solutions.
  • news-PRECO step step drill manufacturers engineering-PRECO-img
Company Advantages
1. The making of PRECO step drill covers a few stages. They are drawing design, including graphic drawing, 3D image, and perspective renderings, shape molding, manufacturing of pieces and the frame, as well as surface treating.
2. With reasonable price but favourable step drill bit for metal , step drill is more appealing.
3. Taking step drill bit for metal into full consideration during the design, step drill are all produced with the highest quality.
4. The product helps reduce environmental pollution. Any hazardous or toxic substances can be prevented from leaking to the air, water source, and land.

Product Information

Step Drills
Individual Size

SizeStepShankTotal LengthItem No. 


  In WoodenIn MetalIn Plastic 
34-12mm(9 steps)354-5030354-5039354-5034
 4-20mm(9 steps)   
 4-30mm(14 steps)   
34-12mm(5 steps)354-5035354-5032354-5044
 6-20mm(8 steps)   
 6-30mm(13 steps)   

Product Message

Company Features
1. Qingdao preco imp. & exp. co., ltd. is an outstanding brand in the industry.
2. Our manufacturing team is the core of our business. They can address quality, cost and delivery issues by improving manufacturing methods to reduce lead times and increase flexibility.
3. While undertaking the responsibility of serving customers wholeheartedly, PRECO is also putting efforts into manufacturing high-quality step drill . Get more info! Qingdao preco imp. & exp. co., ltd. strives to deliver value to our users and be a socially responsible corporation. Get more info! Qingdao preco imp. & exp. co., ltd. offers best quality for step bit with best service. Get more info!
Product Description


ZMAX factory price solid carbide tungsten carbide drill bits

6.0*57.5L 2/4T


stepped drill bit

Item Name: drill bit 

Specification: 6.0*57.5L 2/4T

Place of origin: China

Feature: TCT Tungsten carbide , Left&Right

Application Materials: Chipboard, MDF, Solid wood, Aluminum, Plexiglass,  Artificial stone 





• Made by micro carbide tipped, with long service life. 

• Professional technology, good quality, high precision.

• A varity of styles and specifications are offered 

• Stocks available for regular sizes 

• Customized design available 


More Information about ZMAX Machinery~

       ZMAX MACHINERY CO., LTD. is a professional company in design ,production and 

sales of wood working machinery tool and cutter,whose products are widely 

used in the area of wood and log processing .


Advantage of ZMAX Machinery :


1:specializing in wood working machinery for 15 years


2:high quality with most competitive price in the whole market


3: Efficient wood processing solutions will be provided to you to help you solve the wood processing problem 

Company Office:

Factory of ZMAX:



Our Exhibition:


Our certification:


Package & Shipping:


1. TNT/ FedEx/ DHL/ EMS under 45KG weight goods , Door to Door.
2. By Air or by Sea for batch goods,from airport(seaport) to airport(seaport).
3. Customers specifying freight forwarders or not.
4. Production Time: 7-10 days after received payment.


Our Services:

 Guarantee and after sales-service of ZMAX:


1)The machine is guaranteed for 12 months.

2)Free sawmill processing solutions  will be provided to you.


We ZMAX Machinery Co., Ltd. is a professional woodworking machinery manufacturer over 15 years~

    Welcome to inquiry and visit~


Feel free to contact me:


Foshan City ZMAX Machinery Co,.Ltd

No. 1 Show Room, Lunjiao Woodworking Machinery City, Xibian, Guangzhu Road, Licun, Lunjiao, Shunde District,Foshan City, Guangdong Province,China(Mainland).

Tel: 86-18824891090
Whatsapp / Wechat: 86-18824891090



The design of PRECO step drill is user-centered, giving an aesthetic look and convenience. It is widely applied to civil construction of bridge, highway, water conservancy project, etc
PRECO step bit is designed to provide the highest level of aesthetics. The operation area, storage area, and operation area are clearly marked
PRECO step bit is innovatively designed by our experienced designers. Its caging device and brake are sensitive and reliable
Lean production method is adopted to produce PRECO step drill bit for metal to maximise productivity and minimise costs. It is easy to operate and handle
In terms of the design, the PRECO step bit is very appealing and competitive. It uses the new technology of counter-current mixing
The product has a smooth and sleek surface with intricate details. The clay used usually features fineness and excellent plasticity for making sophisticated patterns. It can help reduce the construction cost and ensure construction quality
The product features great strength. It can oppose the deformation or breakdown in the presence of external forces or load. It is manufactured by ISO 9001 certified factory
The product has enough resilience. When applied to stress, it can absorb external force without permanent deformation. It comes with a load cell for weighing accuracy
This product features excellent fire resistance. The material itself is a kind of fire-retardant material which can withstand the high temperature. It has been exported to more than 30 countries such as Russia, Kazakhstan, and Cambodia
The product features good deformation resistance. When a sufficient load from a machine is applied to it, it will not happen to change shapes. It provides advantages in terms of transport, installation, and commissioning
The product is odor-free. The materials used are heat-sealed to withstand the operating temperature to ensure no unhealthy gases are released during heating. It has been exported to more than 30 countries such as Russia, Kazakhstan, and Cambodia
In accordance with ISO9000, a perfect manufacturing management system and quality control system have been established in Qingdao preco imp. & exp. co., ltd..
Qingdao preco imp. & exp. co., ltd. has always been guided by the needs of its customers. Due to PLC control systems, there is no wastage in achieving precision in concrete production
Qingdao preco imp. & exp. co., ltd. has received the trust and praise of the majority of step drill users. The main feature which differentiates this product from its competitors is the internal abrasion proof surface
Qingdao preco imp. & exp. co., ltd.'s excellent product quality, good service reputation won the favor of domestic and foreign customers. It is equipped with a powerful motor that will drive the mixer
'Persist in providing the best service' is the Qingdao preco imp. & exp. co., ltd.'s philosophy. The exposed transmission mechanism, rotating parts, etc. are equipped with safety protection devices such as protective covers
Detailed inspection and shipping plan shall be submitted to clients before delivery from Qingdao preco imp. & exp. co., ltd.. The noise level is in accordance with the national standard
Product Message
Chat Online 编辑模式下无法使用
Chat Online inputting...