Horizontal 5 1/2FH Drilling Hole Opener HOB Rock Reamer

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
Model Number: 16inches-70inches Size Of Cutters: 10inches-14inches
Rig Type: HDD Rig Material: Carbon Steel
Processing Type: Forging Drilling Depth: 9000m
High Light:

Horizontal Drilling Hole Opener


HOB Rock Reamer


5 1/2FH Drilling Hole Opener

Product Description

Carbon Steel Horizontal Directional Drilling HOB Rock Reamer


The replaceable hob opener is forged from high-quality alloy steel with good weldability. After modulation, the tensile strength is high, which can meet the tensile requirements of large-tonnage drilling rigs. The connection between the wheel body and the valve body is reliable, easy to install and unload, and does not require large-scale special hydraulic equipment. A manual wrench is sufficient, which facilitates field replacement.


Pangolin hob hole cutting machine specifications 16 "~ 70", divided into MT knife and welding knife two kinds, suitable for all kinds of compressive strength of the formation. This product is used for trenchless horizontal directional drilling and reaming of petroleum, natural gas, petrochemical industry, sewage, electric power and optical fiber pipelines.
Larger bearings and smaller conventional tools significantly extend downhole life. Interchangeable cutter set in TCI and milling tooth style to match your formation. All drills have 3-6 tools and can open 3 holes of different sizes.



Product parameters


Model Number 16inches-70inches
Type Reamer
Machine Type Drilling Equipment
Material Carbon Steel
Usage Well Drilling Machinery
Drilling Depth 9000m
Rig Type HDD Rig
Size of Cutters 10inches-14inches
Trademark PANGOLIN
Processing Type Forging



Reamer Size

Hob size and # of Hob Threads
Hob size #of Hobs Hob size # of Hobs




4 1/2IF

5 1/2FH

6 5/8FH







22” 4    
26” 5





30” 5 4
34“ 6 5
38“ 7 5
42“ 7 6
46” 8 6
48” 9 7



Used in
The hob hole opener is the most effective tool for handling various large-diameter piles in hard rock and gravel strata, and isolated stones. It has unique properties and can greatly reduce the economic benefits of construction costs.


It can be used many times. It is convenient and fast to change wheels. The drum can be divided into three types, type A, Type B and type C, and reaming with different diameters can be realized through adjustment.
The unique multi-stage anti-disengagement interlocking device prevents the hob from tripping when the drill bit is empty, and prevents the hob shell from falling off when the bearing is damaged.
The roller body is inlaid with a large-diameter hard alloy, which has a good rock-breaking effect; the bearing diameter is large, and the impact resistance is strong; the metal seal is used, and the service life is long.



Pic Show


Horizontal 5 1/2FH Drilling Hole Opener HOB Rock Reamer 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




Q: How to order the products?
A: Order directly!


Q: How to control the quality?
A: We should be checking & testing everyone drill bit before shipment.


Q: Do you agree sample order?
A: Yes, we are welcome your sample order to testing our quality.


Q: Can we select the color of the drill bit?
A: Yes, we have the color of bule, golden, silvery for your choose. If you need, we can make the drill bit color based on yours.


Q: Do you have after-sale service and warranty service?
A: Any quality or quantity problem once confirmed, we will be compensate you the same. Any question or problem we will be reply you within 24 hours.


Contact Details
Sophie Zhang

Phone Number : +86-13231687581

WhatsApp : +8613231687581