API 7 Blades Coal Mining Drill Bits 216mm Tci Tricone

Place of Origin China
Brand Name Hainaisen
Model Number 8-1/2 HS3733TC
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
Certification ISO9001/API Size 8.5inch / 216mm
Machine Type Drilling Tools Name Diamond PDC Coring Bits
Usage Water Well Drilling,Coal Mine Drilling Connection API REG
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7 blades coal mining drill bits


API coal mining drill bits


216mm tci tricone bits

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Product Description

8-1/2in 7 Blade PDC Drill Bit Oil Well Drilling Machine Tricone Drill Bit
Offers multiple advantages in interbedded lithology.
Enhanced bit stability with BHA shock and vibration mitigation.
FEA software for tool distribution and layout makes drilling more efficient and reduces NPT.
The tool angle is optimized axially and radially by FBS (Force Balance Analysis) software, resulting in a more
aggressive and durable drill.
Through a series of empirical calculations and optimization of DOC (depth) of the drill bit, the tool can enter the
formation more reasonably.

Size 8 1/2 inch (Φ215.9mm)
Model number 8-1/2 HS3733TC
Body type steel body
Number of blade 7
Primary PDC cutter size 1308
Number of nozzle 7
Gauge length 68.2mm
API connection 4-1/2 REG
Make-Up Torque(KN.m) 16.3~21.7(4.79) KN·m(Mpa)
Application Oil & Nature Gas
Quality High Level
Package Iron Case
MOQ 5 Pieces
Certificate ISO 9001
Customized Size Yes

API 7 Blades Coal Mining Drill Bits 216mm Tci Tricone 0API 7 Blades Coal Mining Drill Bits 216mm Tci Tricone 1
Our bits will be shipped within 5 days after 30% of the full payment is confirmed. They will be shipped by sea or air according to your requirements. Please feel free to contact us if you have any other questions. Thanks!


API 7 Blades Coal Mining Drill Bits 216mm Tci Tricone 2

Our Principle
We adhere to the principles of high quality, high quality service and innovation. We also insist on providing efficient products and excellent service. Please contact us if you are interested in our products. We look forward to hearing from you!



1. Can I expect a quality product?
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.

2. How to order the products?
Send an inquiry with detailed item descriptions or model number. If it is possible, please include a reference picture to avoid any misunderstanding.

3. What is the time about the delivery?
A: The lead time depend on quantity of order. Usually shipped by sea, small order or urgent order we can send you by air after received your agreement. According the distance from China to your port, usually from China to European about 25 days. To West of American 20 days.
4. What is your payment terms?
Our payment terms: T/T (normally 30% deposit ,balance 70% before shippment )
or LC at sight.


Communication knows no boundaries, no matter where you are. So if you have any questions, please feel free to contact us anytime :)