Hot sale Pilot Bits - 8 1/2 Inch 216mm IADC537 Rotary Pilling Single Cutters Section of Drilling Bit – YINHAI
Hot sale Pilot Bits - 8 1/2 Inch 216mm IADC537 Rotary Pilling Single Cutters Section of Drilling Bit – YINHAI Detail:
Basic Info.
YINHAI FACTORY OF SELLING DIRECTLY 
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Source factory, API production process, welcome wechat video phone factory inspection, direct brand processing and customization
Advantages of YINHAI Single Roller Cones:
Cutting Structure
Reinforcing the comprehensive mechanical properties of cutting tooth by using high quality tungsten carbide inserts of new form
ula and new techniques of insert bit.
Gauge Structure
The multiple heel position with gauge trimmer on the heel, tungsten carbide and hardfacing on the shirttail, strengthened spear point will enhance the gauge protection.
Bearing Structure
High precision journal bearing with two thrust faces. Ball locked cone. Hardfaced head bearing surface. Cone bearing inlaid with friction reducing alloy and then silver-plated. Abrasion resistance and seizure resistance of the bearing are improved, and suitable for high rotary speed.
Seal and Lubrication
The advanced metal seal package is composed by two metal seals and two elastic rubber energineers. The energizer and back-up ring will support the pushing force to make the two metal faces tightly contact. In the drilling, the metal seals are relevant moving, and the energizers are static. This will increase the bearing seal reliability and durability. The compensation system and the high quality bit grease can limit pressure differential, and greatly increase the lubricating reliability.
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Our objective is to present premium quality products at aggressive prices, and top-notch services to buyers around the world. We have been ISO9001, CE, and GS certified and strictly adhere to their excellent specifications for Hot sale Pilot Bits - 8 1/2 Inch 216mm IADC537 Rotary Pilling Single Cutters Section of Drilling Bit – YINHAI , The product will supply to all over the world, such as: Seychelles, Netherlands, Hungary, We warmly welcome domestic and overseas customers to visit our company and have business talk. Our company always insists on the principle of "good quality, reasonable price, the first-class service". We have been willing to build long-term, friendly and mutually beneficial cooperation with you.
By Jason from Australia - 2018.06.12 16:22
Staff is skilled, well-equipped, process is specification, products meet the requirements and delivery is guaranteed, a best partner!
By Nana from Cannes - 2018.10.31 10:02
