


Hebei Ruishi Bits Manufacturing Co., Ltd |
Item | IADC Code | WOB (KN/mm) | RPN(r/min) | Application |
111/114/115 | 0.3-0.75 | 200-80 | Very Soft formations with low compressive strength and high drill ability | |
116/117 | 0.35-0.8 | 150-80 | (Like caly, mudstone, chalk) | |
121 | 0.3-0.85 | 200-80 | Soft formations with low compressive strength and high drill ability | |
124/125 | 0.3-0.85 | 180-60 | (Like mudstone, gypsum, salt, soft limestone) | |
131 | 0.3-0.95 | 180-80 | Soft to medium formations with low compressive strength | |
136/137 | 0.35-1.0 | 120-60 | (Like medium soft shake, medium soft limestone, medium soft sandstone, medium formation with harder and abrasive interbeds) | |
211/241 | 0.3-0.95 | 180-80 | Medium formations with high compressive strength |
216/217 | 0.4-1.0 | 100-60 | (Like medium soft shake, hard gupsum, medium soft limiestone, medium soft sandstone, soft formation with harder interbeds) | |
246/247 | 0.4-1.0 | 80-50 | Soft formations with low compressive strength and high drill ability(Like hard shale, limestone, sandstone, dolomite) | |
321 | 0.4-1.0 | 150-70 | Medium abrasive formations | |
324 | 0.4-1.0 | 120-50 | (Like abrasive shale, limestone, sandstone, dolomite, hard gypsum, marble) | |
437/447/435 | 0.35-0.9 | 240-70 | Very Soft formations with low compressive strength and high drill ability(Like caly, mudstone, chalk, gypsum, salt, soft limestone) | |
517/527/515 | 0.35-1.0 | 220-60 | Soft formations with low compressive strength and high drill ability(Like mudstone, gypsum, salt, soft limestone) | |
537/547/535 | 0.45-1.0 | 220-50 | Soft to medium formations with low compressive strength(Like medium soft shake, medium soft limestone, medium soft sandstone, medium formation with harder and abrasive interbeds) | |
617/615 | 0.45-1.1 | 200-50 | Medium hard formation with high compressive strength(Like hard shale, limestone, sandstone, dolomite) |
637/635 | 0.5-1.1 | 180-40 | Hard formation with high compressive strength(Like limestone, sandstone, dolomitem hard gypsum, marble) |







The inserts are composed of premium tungsten carbide and some other elements, our engineer fine-tuned the compacts to match specific formations and drilling applications.

The additional rows of teeth increase drilling efficiency and durability without sacrificing ROP. There is more evenly distributed WOB and improved the balance of the bit.

This design delivers six-point contact with the borehole wall for unequalled bit stability that protects the cutting structure from damaging lateral blows.

More tungsten carbide inserts are placed in the gauge to reduce the wear in the abrasive formation. It can increase the stability and life of the bit.

Protects shirttail and reduces thermal effect on sealing and enhances durability and ROP of the bit

Optimized flushing system including three combined nozzles, balances fluid flow, allows effectively cleaning bottom-hole zone and anti-balling




It is usually packed in Iron boxes or wooden boxes, and can also be customized according to customer requirements




Innovative Development Strategist
Hebei Ruishi Bit Manufacturing Co.,Ltd, as a manufacturer of bit with strongest comprehensive strength in North east areas of China.
The company was established in 1990 with strong scientific research strength advanced production equipment , professional CNC machine tools.. Microcomputer automatic temperature control welding furnace advanced four-axis linkage and five-axis numerically-controlled processing center. It has a group of technical experts engaged in bit study design and manufacturing for many years which have developed and manufactured leading PDC bit, tricone bit and PDC clad sheet at home and abroad.
Hebei Ruishi has established PDC clad sheet factory and tricone bit factory through rolling development for 25 years, which has laid solid foundation for the future development of the enterprise. Annual productivity of bit has been in the first place in North China successively for many year. Ruishi Bits has won wide recognition and trust of oil and gas field ,mining industry, geothermy and abroad with excellent quality and honest after-sales service.
The company insist on quality -oriented has become the leader of the industry based on the development strategy of honesty mutual benefit and win-win.
Science and technology promotes the enterprise quality in goal.
Hebei Ruishi has an innovation mind in design, Old experts engaged in bit research for many years ,university students and masters graduated from famous schools have fully demonstrated their talents in Ruishi Bit Co., Ltd
In the same kind of product in : aspects of abrasive action, drilling cost per meter, adaption to stratum,rate of penetration,impact resistance. Quality is the life of Hebei Ruishi and Hebei Ruishi has penetrated the idea of producing bit lean into the whole process of the manufacturing system based on this aim to produce . Every piece of bit it puts quality before quantity.
In the aspect of material selection all approaching materials will be strictly controlled by quality inspectors to avoid all disqualified raw materials .It is lean in the aspect of process, every process into every detail . It is meticulous in the aspect of finished product inspection to inspect strictly in accordance with technical specification and sub-quality.
Substandard products will definitely not leave the factory .Strong sense of responsibility is rooted in the hearts of employees and team idea has been deeply impressed in the mind of every people. People of Ruishi has built the famous and brilliant brand of Ruishi under the leadership of company leaders based on people-oriented,mutual cooperation,lasting improvement.
Honesty Forge ahead with determination
We have never been satisfied with the praise of customers. We are willing to become the best supplier in the minds of customers. Sales service network of Ruishi Bits has formed widest and closest sales and service network in China. Taking Hebei of China as the center to radiate all places of the nation it has brought timely and high -efficient service for most of customers.
When improving the quality of products, it has constantly enhanced the standard of sales service. Products have been exported to many nations and regions such as North America,Europe,Africa,South America ,Middle East which have won recognition and vigorous recommendation of customers all over the world.
Leading the market Unstoppable
As people of Ruishi keep their feet on the ground it has gotten through API certification, France BV certificate and China ISO 9001 certification,patent certificates . Every bit accumulates arduous sweat of people of Ruishi.
Every bit demonstrates gorgeous appearance of people of Ruishi. Every order affirms the excellent quality of" Ruishi". Every honor show the charm of the brand of "Ruishi"
Steady personality makes it stand erect in the business sea. Honesty service makes it develop and grow in the bit industry. Hebei Ruishi develops continuously facing with rapidly changed market to products classics. It steps into magnificent and glorious tomorrow with keen eves. Aggressive attitude and pace that can not be stopped.
The company will participate in the relevant oil equipment exhibition every year, has been to: the United States, Russia, Iran, Singapore and so on
Q1: Are you a manufacturer or a trade company?
A1: We are a manufacturer, and we can help you find different kinds of products in the Chinese market to match your needs.
Q2. Can I have a sample order?
A2. Yes, we welcome sample order to test. Mixed samples are acceptable.
Q3. What about the lead time?
A3. Samples within 3 days, big order within 30 days.
Q4. Do you have any MOQ limit?
A4. One piece for sample testing is available.
Q5. How do you ship the goods and how long does it take to arrive?
A5. We usually send by DHL, UPS, FedEx or TNT. It takes around 3-5 days. Sea shipping also optional.
Q6. What about Payment?
A6. TT, Paypal, L/C, Western Union; 30% deposit before mass production, balance against copy of B/L.
Q7. How to deal with the faulty?
A7. During the warranty period, we will repair or replace defected products.
Q8. Can I visit your factory online?
A8. Yes, we can show our workshop, warehouse, offices online by WeChat, Whatsapp or Skype.