| Customization: | Available |
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| Customized: | Customized |
| Standard: | API, ISO9001; SGS |
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| Instruction | |||||||
| Product type: | PDC Bit | IADC Code: | 4-3-2 | ||||
| Specification | Parameter | ||||||
| Diameter: | 8 ½" | mm | 215.9 | ||||
| Body Type | Steel | Cutter Size(mm): | 13 | ||||
| Connection: | 4 1/2'' API REG | Blades: | 7 | ||||
| Cutter Quantity: | 126 | Cutter Type: | Premium | ||||
| Face Cutter Count | 105 | Cutters on Gage | 21 | ||||
| Weight on Bit(kn): | 10~100 | Rotary speed(rpm): | 60~250 | ||||
| Application | |||||||
| Suitable for medium hard to hard formation with high compressive strength and abrasiveness, such as limestone, hard gypsum, dolomite and sandstone, etc. | |||||||
★In 2012, we obtained our first API certificate. We are one of the earliest in China to obtain it in the drill bit industry. We strictly implement API Spec7-1 quality management standards in the production process.
During the operation of the Bits. We also strictlycomply with:
• ISO9001 Quality Management System;
• ISO14001 Environmental Management System;
• OHSAS18001 Occupational Health and Safety Management System.
★We have been highly recognized by the stability of excellent product quality and timely and thoughtful service. The company's products have been widely exported to the United States, Middle East, Africa and other countries & regions.
★ Hebei Ruishi Bits Manufacturing Co.,Ltd was established in 1990.
- It is engaged in diamond drill bit and drilling tool design, manufacture and sales.
- It is a first-class supplier for Sinopec, CNPC(China National Petroleum Corporation).
- It is located in Renqiu of Jizhong Plain where the oil resourses is rich.
★ Ruishi company is equipped with:
- 5 axis machining center; CNC machine tool; CNC sintering furnace; circumferential sewing machine and other advanced production equipment.
- We are using domestic and foreign advanced professional design software, to doing continuous technological innovation and sustainable development.
- Ruishi owns full production lines of PDC bit and tricone bit of various sizes.
Ruishi's Growth Journey
One day in 1990
RuiShi Bits were born in the Huabei oilfield.
In 1998
Our subsidiary QianLong Tool(QL)was established.
Boasting formidable technical capabilities, QL covers extensive business scopes. Working closely with the parent company(Ruishi), QL has achieved outstanding performance.
From 2009
RuiShi became a vertified First-Class supplier for Sinopec, CNPC and CNOOC day by day.
In 2018
RuiShi increased its registered capital to 200 million RMB. We focus more intently on R&D, design, manufacturing of drill bits. RuiShi quality improves daily, reputation rising bit by bit.
In 2021, our new subsidiary Screw Equipment joined the group.
Ruishi providing comprehensive solutions for oil drilling. With one-stop services, Screw Equipment enhances RuiShi's capacity as a holistic brand.
Today, RuiShi Bits are bestsellers in domestic market and abroad, with a full range of models and sizes from 3'' to 26''.
In the future, RuiShi will build on its heritage and keep serving the petroleum industry in both domestic and international markets. Through continuous innovation, we will seek new development and write a splendid chapter!
After-sale Warranty
(1) Free replacement for quality-related problems.
(2) Timely after-sale support is always available.
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 60 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 or Whatsapp.
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