NC38 NC31 Rock Roller Bits Hole Opener Reamer Water Well Drilling

Basic Information
Place of Origin: HeBei China
Brand Name: Pangolin
Price: Negotiable
Packaging Details: According to customer needs
Delivery Time: 5-15work days
Payment Terms: T/T
Detail Information
Surface Treatment: Welding Disassembly, Repair: Convenient
Characteristics: Not Easily Damaged Material: High Quality Alloy Steel
Color: Request Failure Rate: Low
High Light:

NC31 Rock Roller Bits


NC31 Hole Opener Reamer


NC38 Rock Roller Bits

Product Description

Rock Roller Bits Reamer Hole Opener For Water Well Drilling

Single Roller Cone Bit For Hole Opener Rock Reamer For Water Well Drilling



Best price and high quality
Bearing types: 1. Sealed bearings and non-sealed bearings. 2. Metal-sealed journal bearings. 3. Rubber sealed journal bearings
Cutting structure: All surfaces of the back cone and teeth are hardened, which improves the shape of the steel teeth and welding materials, showing higher teeth
Application structure: low compressive strength and high drillability softness, such as shale, clay, salt layer, etc.
All our activities have obtained ISO 9001:2008 and API certification for products and services. At the same time, mature production technology can ensure that the quality meets international requirements.




Tapered roller reamer 300mm Tapered roller reamer is a kind of drilling tool commonly used in rock formation excavation. Tapered roller reamer manufactured by our company is suitable for all kinds of trenchless drilling RIGS and reamer for all kinds of rock formations. The scope of the specification is Φ 260-1800 mm.



Product parameters


Product name Cones Hole Opener
Manufacturing Process Forging
Quality Reliable
Service life Long
Characteristics Not easily damaged
Surface Treatment Welding
Material High quality alloy steel
Disassembly, repair Convenient
Failure rate Low
Color Request



Reamer Size

Cone size and # of Cones Threads
Cone size #of Cones Cone size # of Cones
10“ 6 1/2” 3     NC23 NC26(2 3/8IF) D50 D80 NC31(2 7/8IF) NC38(3 1/2IF)
12“ 8 1/2” 3    





8 1/2”or 9 1/2”


For 8 1/2”-9 1/2” Cone:

NC23 NC26(2 3/8”IF) D50 D80 NC31(2 7/8”IF) NC38(3 1/2”IF)


For 12 1/4”-13 5/8” Cone:

4”IF 4 1/2IF 5 1/2FH 6 5/8FH

18”-20“ 5 12 1/4” 4
22”-24“ 6



12 1/4” or 13 5/8”

28”-30” 7 6
32”-34” 8 7
36“-38” 9 8
40“-42” 10 9
44“-46” 11 10
48”-50” 12-13 11



Used in

It is suitable for large-scale wells, mining, soft rock with low compressive strength and high drillability, such as shale, clay, salt formation and infrastructure applications.




Cutting structure
The reamer is mainly composed of four or more cones. The use of high-quality tungsten carbide hard surface or high-quality tungsten carbide blade formulations and new cutting structures can improve the wear resistance of the reamer. The pilot is three cone drill bits.

Sealing and lubrication
High-performance HNBR O-ring, used for bearing seal, high-grade grease, used for lubrication.



Pic Show


NC38 NC31 Rock Roller Bits Hole Opener Reamer Water Well Drilling 0


Drill bit hole opener HDD drilling reamer positioning drilling tool 1


Pangolin (China) Construction Machinery Co., Ltd. is a drill manufacturer with complete testing equipment and strong technical force. Our products have a wide range, high quality, reasonable price, and timely delivery, which are widely used in oilfields, drilling, non-excavation fields and other industries. Our products are widely recognized and trusted by users, and can meet the ever-changing economic and social needs. To
We welcome new and old customers from all walks of life to contact us for future business relations and mutual success!


Drill bit hole opener HDD drilling reamer positioning drilling tool 2




1. How to order the products?

A: Please send the inquiry with detail item description or with Model number.


2. How about the common packing?

A: If there is no special packing demand, we will take it as our normal packing. First in small carton, and then put in the bigger carton together to make sure goods completed.


3. Can I expect a quality products?

A: Yes. mature production technology ensuring the quality satisfy international request.


4. How to check if the product is what you want?

Answer: If possible, please attach a reference picture to avoid any misunderstanding or any link on our website for better understanding.


5. How to control the quality?

Answer: We have our own experienced QC team, and will carry out strict inspection and testing on each order before shipment.


6. Fast delivery time:

Answer: It usually takes 25 days to produce, if we have stock of the size you require, it only takes 3 or 5 days.


7. Competitive price:

Answer: Since we sell directly to customers who do not have distributors, our factory can provide you with the lowest price!

Contact Details
Sophie Zhang

Phone Number : +86-13231687581

WhatsApp : +8613231687581