Concave PDC Rock Drill Bit Coal Mine 94mm Polycrystalline Diamond Compact Bit

Place of Origin China
Brand Name Hainaisen
Certification ISO 9001
Model Number 94NA23
Minimum Order Quantity 10 pieces
Price To be negotiable
Packaging Details customized
Delivery Time 7 business days
Supply Ability 300pcs per day

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Product Details
Use Coal Mining Condition New
Market Global Video Outgoing-Inspection Provided
Showroom Location Xi'an, China Cutter Type 1308
Material Diamond And Tungsten Carbide Machinery Test Report Provided
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concave PDC Rock Drill Bit


94mm PDC Rock Drill Bit


94mm Polycrystalline Diamond Compact Bit

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Product Description

Concave Metal Drill Bit Steel Body Coal Mine Drilling Equipment
1. The top surface of the bit is shallow with 3 small nozzles. and in the circumferential direction of the blades there are 3 big nozzles. The nozzles can rinse the bit and clean the rock debris away from the bottom of the hole quickly. They can also prevent the bit from being wrapped by the mud.
2. The gauge surface is inset by alloyed gauge strip which makes the gauge highly abrasive resistant and durable.
3. The cutters (model: 1308) are parallelly inset in the blades in symmetrical way. They are comprehensively high-performance cutters which makes the bit better abrasive resistant and strongly impact resistant. The rotary speed is faster.
4. The caster angle of the primary cutter can be adjusted from 16°to 20°, so the bit has the advantages of strong aggressivity, high rate of penetration and good stability.


Size 3- 7/10inch (Φ94mm)
Model number 94NA23
Body type High Manganese Steel
Number of blade 3
Primary PDC cutter size 1308
Number of nozzle 5
Diameter of nozzle 14mm
Gauge length 29.2mm
API connection 63.5 with Stingers
Suitable formation F≤12
Application Mining&Coal&Well
Quality High Level
Package Corrugated carton
MOQ 10 Pieces
Certificate ISO 9001
Customized Size Yes



Concave PDC Rock Drill Bit Coal Mine 94mm Polycrystalline Diamond Compact Bit 0


Our drill bits will be shipped out within xx days after the 50%/full payment is confirmed.

We ship the bits by sea, by air. Or if you have any other demands, please feel free to let us know.

Concave PDC Rock Drill Bit Coal Mine 94mm Polycrystalline Diamond Compact Bit 1


Our Principle

We are insisting in the principle of high quality, superior service and the courage to innovate. We are also adhering to providing the efficient products and excellent services. If you are interested in our drill bits, please feel free to contact us. We are looking forward to cooperating with you!



1. Are you a trading company or manufacturer?
We have been a professional manufacturer of PDC bits since 2013.
2. Whether accept customized according to clients' requirements?
Yes, We accept customized products, no matter what size and what type. Please feel free to contact us.
3. About lead time and shipping time?
The lead time depends on the quantity of the order. Usually, it will take 3-5 days to ship to Tianjin Port or XI'AN Airport, China. For the small order or urgent order, we can send you by air once the order is confirmed.
4. Is it produced according to the standard? And can I expect a quality product?
Yes, all our activities are accredited to ISO9001: 2015, both in products and services. At the same time, mature production technology will ensure the quality to satisfy the international request. We have strictly inspection in the production. Our bits are exported to the Middle East, Europe, North America, South America, Australia, and other countries and regions.
5. How do you guarantee your quality?
We select the advanced production technology and equipment, strictly control the whole production process, and inspect the finished drill bits. We can also make several design changes according to the customer's feedback, and finally ensure the customer's excellent drilling effect.
6. What is your payment terms?
Our payment terms: T/T (normally 30% deposit ,balance 70% before shippment )
or LC at sight.


If you have any questions, please feel free to contact us. No matter how far away we are, communication is no boundaries.