8 1/2" Cone Hole Opener 36 Inch 915mm HDD Drilling Tools

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
Processing Type: Casting Structure: Horizontal
Suitable Formations: Soft, Medium Soft, Hard, Medium Hard, Very Hard Thread Connection: 6 5/8 Reg Pin & Box
Cutter Quantity: 5 Pcs Or 6 Pcs Weight: 5kg~810kg
High Light:

8 1/2" Cone Hole Opener


36 Inch 915mm Hole Opener


915mm HDD Hole Opener

Product Description

Horizontal Steel Tooth Roller Trenchless Cone Hole Opener

Cone Hole Opener Optimized Structure Ingenious Design



The conical reamer is a commonly used reamer in oil drilling and geological drilling. The roller cone opener has the function of impacting, breaking and shearing the formation rock when rotating. Therefore, the tapered hole opener can adapt to soft, medium and hard formations. Especially after the emergence of jet cone bit and long nozzle cone bit, the drilling speed of cone bit has greatly increased, which is a major change in the history of the development of cone openers.




Optimized structure&ingenious design, fasterdrilling speed.
Premium roller cone cutters. Optional for different crossing.
Enhanced TCI Protection on heel of cones and arm-back.
Bunched Tungsten carbide protection on body.
Heavy duty drill collar from petroleum industry.




In view of the different cutting characteristics of the blades in different parts of the cone, the cone blades are placed in the permanent contact area and the wedge blades are placed in the alternating contact area, which greatly improves the drilling efficiency. A diamond blade is set in the permanent contact area of the cone to improve the wear resistance of the cutting structure, and the blade in this area is severely worn. Place the tungsten carbide insert on the top surface of the cone to protect the cone from wear.
2. Table structure
The cutting body is equipped with active cutting protection blades, so that the drill has good cutting protection and drilling ability.
3. Bearing structure
High-precision journal bearings. The ball locks the cone. Hard surface bearing surface. Tapered bearing with anti-friction alloy. Improve the wear resistance and seizure of the bearing. Compared with tri-cone bits, tri-cone bits have larger outrigger bearings, which can withstand higher drilling weights and are more reliable.
4. Hydraulic design
The small-angle waterway design increases the thickness of the shirt hem, which can effectively prevent waterway erosion. The optimized flow structure is adopted to improve the cleaning capacity and ROP.



Product parameters


Model 36" inch 915mm
Total Length 1500 mm
Thread Connection 6 5/8 Reg Pin & Box
Suitable Formations Soft, Medium Soft, Hard, Medium Hard, Very Hard
Weight 5kg~810kg
Material Carbide, Alloy
Processing Type Casting
Structure Horizontal
cutter quantity 5 pcs or 6 pcs



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


Pic Show


8 1/2" Cone Hole Opener 36 Inch 915mm HDD Drilling Tools 0


Used in

Drilling, exploration, petroleum, drill bits, drilling accessories.
Cone hole opener is the most widely widely apply to oil drilling and geological drilling.


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 the product are the exact one you want?

A: If possible, please attach one reference picture to avoid any misunderstanding or any links from our website for a better understanding.


5. How to control quality?

A: We have our own experienced QC team,there will be strict inspection and testing for each order before shipping out.


6. Fast delivery time:

A: Usually it takes 25 days for production.only 3 or 5 days if we have stock of your request size.


7. Competitive price:

A: Our factory can supply you the lowest price due to direct sale to customers without distributor!


Contact Details
Sophie Zhang

Phone Number : +86-13231687581

WhatsApp : +8613231687581