Audited Supplier
| Description | Milled tooth Tricone bit |
| Size | from 2'' to 36", or as Customized. |
| Seal type | Rubber seal, Metal seal, or as Customized. |
| Formation | Suitable for medium formation with high compressive strength, such as medium soft shale, anhydrite, medium soft limestone, medium soft sandstone and soft formation with hard interlayer. |
| Application | Oil & gas well drilling, geothermal drilling, water well drilling and mining drilling. |
| Hebei Ruishi Bits Manufacturing Co., Ltd | ||||
| Item | IADC Code | WOB (KN/mm) | RPN (r/min) | Application |
| 1 | 111/114/115 | 0.3-0.75 | 200-80 | Very Soft formations with low compressive strength and high drill ability (Like caly, mudstone, chalk) |
| 2 | 116/117 | 0.35-0.8 | 150-80 | |
| 3 | 121 | 0.3-0.85 | 200-80 | Soft formations with low compressive strength and high drill ability (Like mudstone, gypsum, salt, soft limestone) |
| 4 | 124/125 | 0.3-0.85 | 180-60 | |
| 5 | 131 | 0.3-0.95 | 180-80 | 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) |
| 6 | 136/137 | 0.35-1.0 | 120-60 | |
| 7 | 211/241 | 0.3-0.95 | 180-80 | Medium formations with high compressive strength (Like medium soft shake, hard gupsum, medium soft limiestone, medium soft sandstone, soft formation with harder interbeds) |
| 8 | 216/217 | 0.4-1.0 | 100-60 | |
| 9 | 246/247 | 0.4-1.0 | 80-50 | Medium hard formation with high compressive strength (Like hard shale, limestone, sandstone, dolomite) |
| 10 | 321 | 0.4-1.0 | 150-70 | Medium abrasive formations (Like abrasive shale, limestone, sandstone, dolomite, hard gypsum, marble) |
| 11 | 324 | 0.4-1.0 | 120-50 | |
| 12 | 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) |
| 13 | 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) |
| 14 | 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) |
| 15 | 617/615 | 0.45-1.1 | 200-50 | Medium hard formation with high compressive strength (Like hard shale, limestone, sandstone, dolomite) |
| 16 | 637/635 | 0.5-1.1 | 180-40 | Hard formation with high compressive strength (Like limestone, sandstone, dolomitem hard gypsum, marble) |
Advanced assembly lines and experienced designers and workers CAN Guarantee:
√ Delivery Time and
√ Stable Product Quality
√ After Sales Service with Passion
We Provide Wooden Boxes, Iron Boxes, or according to Customer's Customized Requirements.
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 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 2'' 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!
At Ruishi, we promote comprehensive quality management with a focus on customer needs.
To ensure consistent quality and bit performance,
we adhere strictly to API SPEC7-1 and ISO9001 quality standards during production,
ISO 14001 environmental management systems,
and OHSAS 18001 occupational health and safety protocols.
Q1: Are you a manufacturer or a trade company?
A: We are a manufacturer, and we can help you find different kinds of products in the Chinese market to match your needs.
Q2: Can you customize drill bits for specific drilling conditions?
A:Yes, we can customize drill bits to meet specific drilling conditions and requirements, including custom sizes, shapes, and features.
Q3: What's the size range of your bits?
A: 3"-26"
Q4. How to get an exact quotation?
A: Please send us detailed information as below:
-Tricone bits(Diameter, IADC code,sealing method)
-PDC bits(Matrix or Steel body, blades quantity, cutter size, etc)
-Hole opener(Diameter, size of pilot hole, hardness of rocks, thread connection of your drill pipe, etc.)
-Roller cutters(Diameter of cones, model number, etc.)
A simple way is sending us photos .
Besides above, if possible please provide more information as below:
Drilling depth in vertical well drilling, Drilling length in HDD, hardness of rocks, Capacity of drill rigs, application(oil/gas well drilling, or water well drilling, or HDD, or foundation).
Incoterm: FOB or CIF or CFR, by plane or ship, port of destination/discharge.
The more information provided, the more exact quotation will be offered.
Q5. About lead time,payment terms, delivery ?
Ar: 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 T/T,L/C etc.
We are near from Beijing airport and Tianjin seaport, transportation from our factory to Beijing or Tianjin only takes one day, fast and very economical inland charges.
Q6. Can I visit your factory online?
A. Yes, We warmly welcome you to visit our factory. Also we can show our workshop, warehouse, offices online by WeChat, Whatsapp or Skype.
