Sinorock EY EYY hardness drill bit for sandstone self drilling

$3.00 - $50.00
Min. Order
100 Pieces
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Company Information

Luoyang Sinorock Engineering Materials Co., Ltd.

CN Trading Company
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Quick Details

Port: Shanghai
Payment Terms: L/C,T/T
Supply Ability: 50000.0 Piece/Pieces per Month
Condition: New
Place of Origin: Henan China
Processing Type: Casting
Warranty: 1.5 years
Machine Type: Drilling Tool
Use: Coal Mining
Sample: Available
Usege: Coal mining
Color: Galvanized
Showroom Location: None
Standard: ISO9001:2015
Material: Tungsten Carbide,Carbon Steel
Certification: ISO
Thread: Inside
Brand Name: Sinorock
Video outgoing-inspection: Provided
Type: EYY hardness pdc drill bit for sandstone drilling,Drill Bit
Marketing Type: Ordinary Product
Applicable Industries: Building Material Shops,Manufacturing Plant,Energy & Mining,Advertising Company
Advantage: High Performance
Product name: Button bit
Local Service Location: None
Application: Construction
Machinery Test Report: Provided
Packaging Detail: Packing process: Products are classified according to their categories. Generally, couplings, nuts and drill bits will be put into cartons first, all the cartons will be packed into pallets. Plates will be packed together firstly and the into pallets. Hollow anchor bar will be packed into bundles and then wrapped with packing paper. Products are loaded into the container after well packed.
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Sinorock EY EYY hardness drill bit for sandstone self drilling

Product Description

1 (1)

Self drilling anchor bolt combines drilling, grounting and anchoring together. It ensures the anchoring effect in complex ground conditions. It's safe, reliable and efficient.


Drill Bits

Drill bit is made from steel which can provide enough hardness in rock mass. It is used for drilling and installed on the head of anchor bar. As self drilling anchor bar just needs to be installed into the rock directly, the drill bit is used for only one time. 


1.To meet different demands,Sinorock has various kinds of drill bits includes EX, EXX, XX, ES-F, EYY, ESS-F, EYY,EY,EC,ECC,clay bit, ESS-D...
2. It's suitable for various ground conditions.
3. Easy installation.


Type Application(Advice)
Hardened Cross-cut Drill Bit Sand, fills, gravel
Tungsten Carbide Cross-cut Drill Bit Softer sedimentary rocks such as marls, mudstones, siltstone
Clay Bit Clay, soft soil, marls, loose sand or gravel 
Hardended Button Drill Bit Gravel, soft rock

Tungsten Carbide Button Drill Bit 

Weathered rock, stone walls, rubble
Hardended Tri-Crescent Concave Button Drill Bit Chalk, gravel
Two Stage Cross-cut Drill Bit Sand, clay, fills, gravel

Drill bits are cutting tools used to create cylindrical holes, almost always of circular cross-section. Bits are held in a tool called drill, which rotates them and provides torque and axial force to create the hole. Sinorock drill bit is suitable for various ground condition. It is especially efficient and fast when drilling in hard and medium-hard rock.

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Recommend Products

Self drilling anchor bolt is composed by hollow anchor bolt, anchor nut, anchor plate, anchor coupler, drill bit, centralizer, and the hollow anchor bars can be cut and lengthened by coupling on request.

Customized products are also available based on your specific requirements.

Company Information

Sinorock is an experienced manufacturing and trading company specialized in the research & development, production and sales of self drilling anchor bolt and other anchoring products. Our products originate from the self-drilling anchor system, and focus on the self-drilling products from beginning. Sinorock is a mainly export-oriented company,which products have been exported to more than 40 countries in the world.                                       

Self drilling anchor bolt is our core product which includes R-thread system and T-thread system. The sizes we can produce include R25, R32, R38, R51, R63, T30, T40, T52, T73, T76, 103, T111, T127,T130,T150 and T200. We have professional product research and development team which makes customized service available. Moreover, Sinorock has passed ISO certification (issued by BV company). All series of self drilling anchor bolt has passed CE certification.


Our Services

Sinorock® has built a strict quality control system which has been applied in the whole manufacturing process. Every batch of products will be tested strictly in our factory laboratory to guarantee all of the products delivered to customers are qualified and reliable. Sinorock® also has ISO and CE certificates. Through several years’ efforts, Sinorock® products have been exported to Asia, Oceania, Europe, Africa, North America, South America and widely used in tunneling, mining, hydroelectric station and civil construction. Owing to reliable products and excellent services, Sinorock® has won great reputation all over the world.



Packaging & Shipping

Sinorock has a professional packaging standard and process for every product. Most suitable packaging solutions for transportation, loading and unloading are summarized after the coorperation, communication with hundreds of customers. Each size of product has an independent and complete package standard. Packing steps are clear and requirements are definite. Sepecial packaging schemecan be customizeds according your request.Packing&shipping.jpg




Q1: Are you a manufacturer?
A: Yes, We are an experienced manufacturer of self drilling anchoring products with over 10 years' production experience.

Q2: Do you have product certification?
A: Yes, we do have ISO9001 and CE certification. You can find relevant information on our website:

Q3: Can you provide product brochure?
A: Please download brochures on our website:


Q4: What size of self drilling anchor bolt do you have?
A: Self-drilling anchor bolt is our core product. We can provide R25, R32, R38, R51, T30, T40, T76, T52, T103 and T111,T127,T130,T150 and T200 self drilling anchor bolt.

Q5: What’s the range of products do you have?
A: Sinorock not only provides the products produced by our own factory, like self drilling hollow anchor bolt system, but also provides duplex coating rock bolt system, expansion shell anchor bolt system, stainless self drilling anchor bolt system, fiberglass anchor bolt system and friction rock bolt system.

Q6: Can you send samples?
A: Yes, we'd like to provide samples. If the cost of goods is less than 50USD, we will provide samples for free and clients only need pay the freight charges. If the cost of goods is more than 50USD, both the cost of goods and freight need to be paid by clients.

Q7: Which country or region have your products been exported to?
A: Our products have been exported around the world, such as America, Canada, Switzerland, Russia, Australia, New Zealand , Japan, South Korea, Chile, Iran, etc.

Q8: Could you offer the price?
A: Before offering prices to you, will you please tell me your quantity and which type of products do you need? Quotation will be provided according to your specific requirement.

Q9: Could you provide the packing details?
A: Generally, our anchor bars are packed in buddles. Accessories are put into cardboards and then packed into pallets. You can find some information on our website: