16mm Tricone Rock Bit 7 Nozzle Double Row Polycrystalline Diamond Bit

Place of Origin China
Brand Name Hainaisen
Certification ISO 9001
Model Number 12-1/4 HS65330C
Minimum Order Quantity 5 pieces
Price To be negotiable
Packaging Details iron case
Delivery Time 5-7 business days
Payment Terms T/T, L/C
Supply Ability 20pcs per day

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Product Details
Size 12.25", 311.15mm Cutter Size 13,16,19mm
Body Type Steel Body Nozzle Number 7
Row Double Row Primary PDC Cutter Size 1613
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16mm Tricone Rock Bit


7 Nozzle Tricone Rock Bit


16mm Polycrystalline Diamond Bit

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Product Description

12 1/4 Inch 5 Blades Tricone Drill Bit Diamond Bit Drill Bit

1. The crown surface of the drill bit is a long cast surface, covered by double rows of cutters, which increases the stability of the drill bit when drilling at high speed. This bit is suitable for abrasive formations.
2. The shoulder is subject to complex stress and serious wear. Therefore, we enhanced the local design to maximize the equal yield density and wear resistance of the tool.
3. The drill bit is designed with 3 blades, and the flow is wide to prevent the drill bit from pilling. Blades are designed to be asymmetric one to eliminate unbalanced forces and reduce damage to the tool.
4. The gauge surface is designed in a spiral shape to increase the density of teeth and reduce the length of the effective gauge diameter. This design can increase the measuring area, reduce the torque, and increase the life of the drill. At the same time, the drill can be better controlled by the nozzle. The double-row PDC knife gauge teeth are embedded/inlaid with the long gauge surface to enhance wear resistance and gauge effect. It also increases bit stability.


Size 12 1/4 inch (Φ311.15mm)
Model number 12-1/4 HS65330C
Body type steel body
Number of blade 5
Primary PDC cutter size 1613
Number of nozzle 7
Gauge length 101.3mm
API connection 6-5/8 REG
Make-Up Torque(KN.m) 33.03~43.3(9.56) KN·m(Mpa)
Application Oil & Nature Gas
Quality High Level
Package Iron Case
MOQ 5 Pieces
Certificate ISO 9001
Customized Size Yes

16mm Tricone Rock Bit 7 Nozzle Double Row Polycrystalline Diamond Bit 0
16mm Tricone Rock Bit 7 Nozzle Double Row Polycrystalline Diamond Bit 1
Our bits will be shipped within 4 days after 50% of the full payment is received by sea or air as you require.
Please contact us freely if you have any other requests.

16mm Tricone Rock Bit 7 Nozzle Double Row Polycrystalline Diamond Bit 2 
Our Principle
Our principle is to provide our customers with the highest quality tools, accessories, and services in the industry. Years of experience, well-trained professionals and a complete mechanical workshop support us. Reducing costs, speeding up drilling, and ensuring safety have always been our mission.

1. Why you choose us?
We are factory of drill bits, so the price is affordable, and the quality can be controlled. Also, we can do customized products according to client's request.
Our promise is to provide reasonable prices, short production period, and satisfactory after-sales services.

2. Whether accpect customized products according to client's requirement?
Yes, we accept customization, no matter what size or how many blades you want.
3. Can I visit your factory online?
Yes, we can definitely show our workshop, warehouse, office online through WeChat, Whatsapp or Skype.

3. How to order the products?
Send the inquiry with detail item description or with Model number. If there is no packing demand we take it as sea-way packing. If possible please attach one reference picture to avoid any misunderstanding or any links from our website for we get a better understanding.

Communication knows no boundaries, no matter where you are. If you have any requests, please feel free to contact us at anytime!