8-1/2 Tungsten Carbide Removable Roller Bit Rock Roller Bits for Core Barrel
For Machines :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.
1.We have a few senior engineers o specializes in tungsten carbide field for many decades.we can select appropriate grade and composition according to your application and your requirements.
2.for your non-standard parts,we have strong ability to make mold by ourselves,and produce them per your requirements.
3. we have strict quality control and assurance system to guarantee the consistent quality
Cutting Structure
The wear-resistance of the teeth is enhanced with premium tungsten carbide hardfacing on the tooth surfaces for the steel tooth bit.The durability of premium tungsten carbide inserts is improved with new formulas and new techniques for insert bit
Gauge Structure
Multiple gague protection with gauge trimmers on the heel and gauge inserts on the gauge surface of the cone,tungsten carbide inserts and hardfacing on the shirttail increases gauge holding capacity and bearing life
| Single Roller Bits |  | BIT SIZE(SINGLE ROLLER) | BIT TYPE | | In. | mm | | 5 7/8 | 149.2 | 517,537,617,637,737 | | 6 | 152.4 | 517,537,617,637,737 | | 8 1/2 | 215.9 | 517,537,617,637,737 | | 9 7/8 | 250.8 | 517,537,617,637,737 | | 10 5/8 | 269.9 | 517,537,617,637,737 | | 12 1/4 | 311.1 | 517,537,617,637,737 | | 14 3/4” | 374.6 | 517,537,617,637,737 | | 17 1/2” | 444.5 | 517,537,617,637,737 | |
Product Details
Single cone bit is a kind of deceleration bit, which is the speed of cone is smaller than the speed of drill, mainly disorderly cutting broken rock. It is suitable for old well sidetracking and deepening the slim hole drilling operation under high rotary speed and drilling pressure.
Cases for Roller Bits
Application
Shipping & Delivery
FAQ
Q1. How long have you been in this business?
Over 10 years experience.
Q2. Do you accept sample order?
Yes sure, please contact us for details.
Q3. How about your after-sales service?
We offer promote technology support for all problems and questions.
Besides, we accept goods return or replace for quality problem.
Q4. How does your company control the quality?
Quality first. In order to guarantee high quality for our products.
Kellyway makes a serious inspection for all products and raw materials in strict procedure.
Our service
1. Prompt delivery
2. Best after-sale service
3. The products could be produce according to customer's requirements
4. Inquiries are typically replyed within 24 hours
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8-1/2 Removable Rock Roller Bits With Tungsten Carbide Bits Welding And Holder Type Images
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