Ruishi Bits 8 1/2" Steel Tooth Tricone Bit Mill Tooth Tricone Bit for Oilfield Drilling

• Customization: Available
• After-sales Service: Yes
• Warranty: 1.5 Year
• Model NO.: 16 " (406.4mm)
• Certification: ISO 9001:2008, API
• Standard: API
• Surface Treatment: Spray-Paint
• Manufacturing Process: Casting
• Material: Alloy Steel
• Bearing Type: Rolling Bearing
• API: API 7-1
• Total Teeth Count: 80
• Gage Row Teeth Count: 40
• Number of Gage Rows: 3
• Number of Inner Rows: 5
• Journal Angle: 33°
• Offset(mm): 8
• API Connection: 7 5/8′′ Reg. Pin
• Weight on Bit (Kn): 81-284
• Rotary Speed (Rpm): 600-60
• Recommended Upper Torque: 46.1-54.2kn.M
• Formations: Soft Formation of Low Crushing Resistance and High
• Transport Package: Ply Wood Box, or as Customized
• Specification: 16"
• Trademark: Ruishi
• Origin: China, Cangzhou
• HS Code: 820719
• Production Capacity: 2500PCS/Year
• Package Size: 58.00cm * 56.00cm * 56.00cm
• Package Gross Weight: 30.000kg

Product Description

Product Parameters

Description	Milled tooth Tricone bit
Size	from 3'' 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.

Detailed Photos

Customization Support

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

Packaging & Shipping

We Provide Wooden Boxes, Iron Boxes, or according to Customer's Customized Requirements.

Company Profile

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 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!

Our Advantages

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.

FAQ

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 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.