Hunan Kellyway Machinery Co., Ltd.
| Supply Ability | 300 Piece/Pieces per Day |
| Packaging Details | Wooden Cases |
| Payment Terms | 50% DEPOSIT + 50% T/T |
| Type | Core Drill Bit |
| Material | Tungsten Carbide |
| Application | Hard rock drilling |
| Color | Customer Required |
| Model | 8-1/2' Roller Bits |
| Condition | 100%new |
| Packing | Wooden Case |
| Other models | 12-1/4' |
| Port | Shenzhen, Tianjin, Shanghai, Beijing, Qingdao |
| Place of Origin | Hunan, China |
| Brand Name | Kellyway |
| Model Number | 8 1/2' |
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Product Specification
| Supply Ability | 300 Piece/Pieces per Day | Packaging Details | Wooden Cases |
| Payment Terms | 50% DEPOSIT + 50% T/T | Type | Core Drill Bit |
| Material | Tungsten Carbide | Application | Hard rock drilling |
| Color | Customer Required | Model | 8-1/2' Roller Bits |
| Condition | 100%new | Packing | Wooden Case |
| Other models | 12-1/4' | Port | Shenzhen, Tianjin, Shanghai, Beijing, Qingdao |
| Place of Origin | Hunan, China | Brand Name | Kellyway |
| Model Number | 8 1/2' | ||
| High Light | 130mm diameter roller cone drill bit ，8 1/2' roller cone drill bit ，8 1/2' Tungsten Carbide Insert Bit | ||
Rotary Piling Tools 8 1/2 Replaceable Type Roller Bits Drilling Bits For Core Barrel and Reamer
The products adapt to the machine with all the performance features such as a high feed rate, a long service life and short tool changing times. Together with the parts supply assurance, a high daily production volume, and above-average economy is guaranteed
roller bits are tools for boring into rock and earth. They are used to drill blasting holes and penetrate both soft and hard rock materials. Products are also used in many other mining, quarrying, tunneling, construction, geological exploration, and blasting applications. Roller bits can be classified as chiseling bits, tapered or threaded cross-style bits, anchor bits or self-drilling anchor systems, blasting furnace taping hole bits or rods, or coal cutter bits. They feature a hollow body with multiple, outward-extending wings.
Specification of Roller Bits
| Size | TC Bit Dia.(mm) | TC Bit No. (PCS) | TC Bit Height(mm) | Dia. of Roller(mm) | Height of Roller(mm) | Remarks |
| 8-1/2’ | 13 | 42 | 7 | 134 | 83 | Both Welding and holder type are available |
| 13 | 55 | 7 | 130 | 83 | ||
| 14 | 42 | 9 | 138 | 83 | ||
| 14 | 55 | 9 | 134 | 83 | ||
| 15 | 45 | 8 | 141 | 83 | ||
| 10-1/2’ | 17 | 50 | 11 | 170 | 98 | |
| 12-1/4 | 14 | 75 | 9 | 186 | 130 |
1.Packing type:wooden case,also be packaged according to customer requirements.
2.Modes of transportation:by sea, by air or land transportation,Of course,a small amount can also by Express.
1.We will keep track of each customer to get the feedback of product quality and service. And we will make an amendment according to your feedback.
2.If the product size is wrong, we will send the right one freely.
3.We guarantee the high quality. Please feel free to contact us if you found any damage. We will solve the problems ASAP.
1. What is the quality control for your products?
Answer: All of our production are in lines of API rules and ISO9001:2015 strictly, from signing contract , to raw materials, to each production processes, to product finish, to after-sale service, each processes and sections are in accordant with standard.
2. About lead time,payment terms, delivery ?
Answer: We always have regular models available in stock, prompt delivery is one of our advantages. Mass production depends on quantity of order.
We accept all regular payment terms including L/C, T/T, etc.
We are nearby airport and seaport of Shanghai, Tianjin, Shenzhen , Qingdao, fast and very economical inland charges.
3. Can you produce according to special requirement?
Yes, we can produce products as required.
4. After Sale Services:
a. Our sales team will response for your question within 24 hours (Holidays Excluded)
b. Technical Support will be available in any time
c. Free replacement will provide once the failure confirmed caused by our product quality
Company Details
Business Type:
Manufacturer,Exporter
Year Established:
2015
Total Annual:
8000000-40000000
Employee Number:
92~100
Ecer Certification：
Active Member
HKM locates in Hunan province which is in the center of China famous for heavy equipment manufacturers. Kellyway is committed to manufacture and supply most reliable and highest cost-performance products for piling works including Kelly Bars, Drilling Tools, Drilling teeth, Double and Single Wall Ca... HKM locates in Hunan province which is in the center of China famous for heavy equipment manufacturers. Kellyway is committed to manufacture and supply most reliable and highest cost-performance products for piling works including Kelly Bars, Drilling Tools, Drilling teeth, Double and Single Wall Ca...
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