3 Blade Concave Drill Bit API Manganese Coal Mining

Place of Origin China
Brand Name Hainaisen
Certification API & ISO 9001
Model Number 153NA23
Minimum Order Quantity 10 pieces
Price To be negotiable
Packaging Details customized
Delivery Time 5-7 business days
Payment Terms T/T, L/C
Supply Ability 300pcs per day

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Product Details
Name 6inch 3 Blades Concave Drill Bit Certification API And ISO
Connection API REG Machine Type Drilling Equipment
Usage Drilling Through Sheet Metal Length Customized
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Hainaisen 3 blade Concave Drill Bit


Hainaisen API Concave Drill Bit


Hainaisen Manganese coal mining drill bits

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Product Description

6inch 3 Blades Concave Drill Bit Water Drill Bit Mining PDC Bit



1. The top surface of the drill bit is a shallow conical surface, with 3 small water holes on the top surface and 3 large water holes in the circumferential direction of the blade, which can better clean the drill bit, make the rock powder drain away from the bottom of the well as soon as possible, and avoid secondary occurrences Broken phenomenon, prevent the mud bag of the drill bit.
2. The gauge gauge surface of the blade is inlaid with alloy gauge bars, so that the gauge gauge of the drill has strong wear resistance, good durability and long service life;
3. The blade teeth are arranged in parallel and evenly, and the cutting teeth are made of 1308 composite high-performance composite sheets, which have good abrasiveness, fast drilling speed and strong impact resistance.
4. The back inclination angle of the main cutting teeth of the drill can be adjusted between 16° and 20°, with strong aggressiveness, high ROP and strong stability.


Size 153
Model number 153NA23
Body type High Manganese Steel
Number of blade 3
Primary PDC cutter size 1308
Number of nozzle 3
Diameter of nozzle 14.2
Gauge length 33
API connection 89 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

3 Blade Concave Drill Bit API Manganese Coal Mining 0



Our drills will ship within 5 days after 50% full payment is confirmed. The drill bits will be shipped by sea or air as your request. And if you have any other questions, please contact us freely. Thanks!

3 Blade Concave Drill Bit API Manganese Coal Mining 1

Our Principle

We adhere to the principles of high quality, high quality service, and innovation. We also insist on providing efficient products and quality services. If you are interested in our drills, please feel free to contact us. We are looking forward to cooperating with you!




Q1: Can I expect a good-quality product?
A: Of course, all our activities in products and services are ISO9001 certified. At the same time, mature production technology ensures the quality meets international requirements.


Q2: Are you a manufacturer or trading company?
A: We have manufactured pdc drill bits since 2013, so we have price advantages.


Q3: Where is your manufacturer?
A: Our factory is located in Jing Wei Industrial Park of Economic and Technological Development Zone in Xi'an, China.


Q4: What is your payment terms?
A: Payment terms: normally 30% deposit, balance 70% before shipment.
Payment methods: T/T, L/C.