Shandong, China
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Construction & Decoration, Electrical & Electronics, Industrial Equipment & Components, ...
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Replaceable Hole Opener, Roller Cone Bit, Fixed Rock Reamer manufacturer / supplier in China, offering 24′′ Replaceable HDD Rock Reamer Hole Opener for Hard Drilling, Diesel Water Pump Chinese Supplier for Irrigation/Mine Dewatering/Fire Fighting/Marine Use, Best-Selling Diesel Water Pump for Irrigation/Mine Dewatering/Fire Fighting/Marine Use and so on.

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Supplier Homepage Products Drilling Equipment&Drilling Tools Hole opener 24′′ Replaceable HDD Rock Reamer Hole Opener for Hard Drilling

24′′ Replaceable HDD Rock Reamer Hole Opener for Hard Drilling

Min. Order / Reference FOB Price
1 Piece US $100/ Piece
Port: Tianjin, China
Production Capacity: 10000PCS/Month
Payment Terms: L/C, T/T, D/P, Western Union, Paypal, Money Gram
Customized: Customized
Standard: API, ISO
Length: 3"-72"
Type: Core Drill Bit
Material: Tungsten Carbide
Usage: Well Drilling, Oil Drilling,Building

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Basic Info.

Model NO.
Brand New
Processing Type
Guarantee Period
3-4 Years
Delivery Time
3-7 Days
Machine Type
Drill Tools / Drill Equipments
IADC 517 537 617 637 and So on...
Thread Connection
6 5 / 8 Reg Pin & Box
Factory Series
Pilot Reamer ( Hole Opener)
Oil,Gas,Geothermy,Water Well,HDD,Mining,Foundation
Suitable Formations
Soft, Medium Soft, Hard, Medium Hard, Very Hard
High Rotary Speed Performance
After Service
Bearing Type
Sealed and Non-Sealed Bearing
Total Length
1500 mm
OEM as Per Your Requirement
Far Eastern
Transport Package
Plywood Box
24 inch hole opener
HS Code

We are  factory  specializes in drill bits,such as tricone bits, PDC bits, HDD hole opener,Foundation roller cutters  for water well, oil field, gas well,mining,construction, geothermal, directional boring, and underground foundation work all over the world. Our purpose is to sell the high quality products at the lowest possible price.

24'' Replaceable HDD Rock Reamer Hole Opener for Hard Drilling

Replaceable Hole Opener/HDD reamer bit's introduction

Replaceable teeth wheel rock reamer suitable for large rigs trenchless pipe laying large diameter trenchless construction, suitable for a variety of rock formations, reaming diameter range up Φ300-2200mm

Wheel body and the body connection reliable, easy disassembly, does not require large-scale special hydraulic equipment, artificial wrench can be convenient to replace the wheel body.

The same body can be reused, you can also install different specifications of the wheel, under normal circumstances can be replaced four different size of the wheel body, which can be carried out with a body of four sizes aperture hole construction, greatly saving construction costs

Horizontal Directional Drilling hole openers are also known as HDD reamers which used to enlargethe pilot hole in Horizontal Directional Drilling (HDD).HDD is used in trenching and excavating is notpractical. This drilling technology allows for a steerable trench-less way to underground.

There are three stages:

a.The first stage is to drill a small diameter pilot hole.

b.The second stage is to enlarge the hole with a  larger diameter cutting tool called an HDD Reamers,    Rock Reamer or Hole Opener.

c.The thirdstage is inserting the casing pipe or other product into the enlarged hole.

24'' Replaceable HDD Rock Reamer Hole Opener for Hard Drilling

NameHole opener
Bit sizeany size
Tooth typechisel insert
Thread connectionsAccording to API Spec7-1 standard
Coon PinAPI Reg regular
Cutter 8 1/2 IADC537
MaterialTungsten carbide insert
Lubrication and sealAdopt advanced grease
Thrust facesHardfaced with wear resistant alloy
Multiple gauge protectionYes
Gauge protectionOn the Shirttail: More carbide inserts increase gauge holding capability and bearing life.
BearingElastomer sealed (rubber sealed) journal bearing
 Metal-face   sealed journal bearing
Industrial standard of ChinaSY/T5164

HDD hole opener drilling bits for hard rocks
Hole opener
Large-diameter assembled bit is widely used in construction, bridge, highway and railway construction. This series of bits are suitable to various kinds of strata including shale, limestone, cobblestone, dolomite and conglomerate.
1.Suitable for medium to medium hard formation of high Crushing Resistanc
(hard shale,sands,etc.)    
2.Bit bearing is non-sealed roller bearing.
3.Hardfacing is applied on the shirttail,and carbide inserts for gage protection
are pressed into the head OD.
4.Cone gage surface is reinforce with carbide compacts. 
1.Cutting Structure
In response to the characteristics that inserts in different areas on the cone have different cutting actions, conical inserts are placed in permanent contact area and wedge inserts are placed in alternative contact area so that the drilling efficiency is greatly improved. Wear resistance of cutting structure is enhanced by setting diamond inserts in the permanent contact area of the cone where inserts are severely worn. Tungsten carbide inserts are placed on cone top face to protect cone body from abrasive erosion.
2. Gauge Structure
With active cutting gauge protection inserts on bit body, the bit has good gauge protection and up drill capability.
3.Bearing Structure
High precision journal bearing. Balls lock the cone.Hardface heard bearing surface. Cone bearing inlaid with friction-reducing alloy. Abrasion resistance and seizure resistance of the bearing are improved. Compared with three cone bit, the leg bearing is bigger, so it can receive higher WOB and high reliability.
4.Hydraulic Design
Small angled watercourse design increased the shirttail thickness and can effectively prevent the watercourse erosion.Optirnized hydraulics structure improves the clearing capability and increases ROP.
5. Product Application 
It is suitable for sidetracking, deep well drilling and old well 

24'' Replaceable HDD Rock Reamer Hole Opener for Hard Drilling

6.Main Availablility

Big Reamer & Piling Bit
Cutting StructureThe reamer always have multi-cones. Bit cones are splited from tricone bits and welded to build a new big diameter bit. The pilot is three cone bit.
Product ApplicationBigger diameter for piling in construction field, bridge construction, super highway construction, railway construction etc. This kind of bits are suitable for different complex formation, shales, limestone, cobblestone, dolomite, chert, etc.
Main Type AvailableRegular Bit Diameters: 28 ",32",36",38", etc, and any diameters can be customized, maximum diameter is 1600mm.

24'' Replaceable HDD Rock Reamer Hole Opener for Hard Drilling

Single cone bit is a kind of deceleration bit, which is the speed of cone is smaller than the speed of drill, mainly disorderly cutting broken rock. It is suitable for old well sidetracking and deepening the slim hole drilling operation under high rotary speed and drilling pressure. 

1. Its application field is wide, not only suitable for side drilling, and can be used in deep well. 

2. Work torque is lower than PDC bit in the same drilling pressure and formation condition. It can reduce the small size hole expansion buckling problems, so that avoid down hole accidents. 

3. Single cone bit has advantages of both three cone bit and PDC bit, and make up the disadvantages of both. It is more suitable for large plastic formation than three cone bit, also can be applied to hard interlayer which PDC bit can not deal with other complex formation. 

4. It can realize high speed and special drilling with down hole motor.

core barrel are used for drilling in cohesive and non-cohesive soil below groundwater level. Digga's drilling buckets are suitable for breaking and ripping hard soil up to medium hard rock. Digga Drilling Buckets boast a heavy duty construction and come fitted with a Kelly Box (drive hub) to suit your machine. Its design allows for a manual hand-operated, or automatic opening mechanism to be fitted (for emptying)- For drill rigs fitted with striker plate.
Heavy duty construction with provision for reamer bars
Comes fitted with Kelly Box (drive hub) to suit your machine
7 digging configurations from single start bladed to rock, as well as combination tooth solutions
Opening mechanism options include manual hand-operated
or fully automatic (suits drill rigs with striker plate fitted)
Base options include swivel and valve style 
Specialised buckets including rock and earth available
Other tooth options available upon request

24'' Replaceable HDD Rock Reamer Hole Opener for Hard Drilling

24'' Replaceable HDD Rock Reamer Hole Opener for Hard Drilling

Brief introduction

Basical Specification
  Size of Rock Bit 14 3/4 inches
 IADC Code 537G
 Thread Connection -
 Factory SeriesElastomer sealed bearing
  Operating Parameters
 WOB            (Weight On Bit) 12620~28045lbs
 RPM 120~50
Formation Soft to medium formation with low compressive strength ,such as medium soft shale,medium softlimestone,medium soft sandstone,medium formation with harder and abrasive interbeds,etc.


2.More information about the tricone bit
ModelSteel tooth bit,TCI Bit
IADC CODE116 117 12 6127 136 137 216 217 226 226 316 317 326 327 336 337 115 125 135 215 225 235 315 325 335 114 124 214 314 111 121 131 346 347
417 427 437 517 527 537 617 627 637 737 745 837 832 845 415 425 435 445 525 625 635 416 427 436 446 447 516 526 537 547 516 536 535
available sizes:From 2 7/8 to 26"

larger sizes for hole opener bit ,reamer bit
advantagemost favourable price and best qualtity
bearing type:sealed bearing and non-sealed bearing

HJ(metal sealed journal bearing) 

HA (rubber sealed journal bearing

aircooled bearing type
Formation or layersoft ,medium soft ,hard,medium hard,very hard formation
Button size (extra features)Button bit,saw teeth

1) Y-Conical teeth 2) X-chisel teeth 

3)K- wide teeth 

4)G- Gague protection
MaterialAlloy steel ,carbide
Applicationpetroleum&gas ,water well ,mining and tectonic industries ,oil field, construction, geothermal, directional boring, and underground foundation work

24'' Replaceable HDD Rock Reamer Hole Opener for Hard Drilling
24'' Replaceable HDD Rock Reamer Hole Opener for Hard Drilling

24'' Replaceable HDD Rock Reamer Hole Opener for Hard Drilling

24'' Replaceable HDD Rock Reamer Hole Opener for Hard Drilling

24'' Replaceable HDD Rock Reamer Hole Opener for Hard Drilling


1. How to get an exact quotation?

Answer: Please send us detailed information as below:
-Tricone bits(Diameter, IADC code)

-PDC bits(Matrix or Steel body, blades quantity, cutter size, etc)

-Hole opener(Diameter, size of pilot hole, hardness of rocks, thread connection of your drill pipe, etc.)

-Roller cutters(Diameter of cones, model number, etc.)

-Core barrel(Diameter, quantity of cutters, connection, etc.)

A simple way is sending us photos .


Besides above, if possible please provide more information as below:

Drilling depth in vertical well drilling, Drilling length in HDD, hardness of rocks, Capacity of drill rigs, application(oil/gas well drilling, or water well drilling, or HDD, or foundation).


Incoterm: FOB or CIF or CFR, by plane or ship, port of destination/discharge.


The more information provided, the more exact quotation will be offered.


2. What is the quality control for your products?

Answer: All of our production are in lines of API rules and ISO9001:2015 strictly, from signing contract , to raw materials, to each production processes, to product finish, to after-sale service, each processes and sections are in accordant with standard.


3. About lead time,payment terms, delivery ?

Answer: We always have regular models available in stock, prompt delivery is one of our advantages. Mass production depends on quantity of order.

We accept all regular payment terms including L/C, T/T, etc.

We are near from Beijing airport and Tianjin(Xingang) seaport, transportation from our factory to Beijing or Tianjin only takes one day, fast and very economical inland charges.


4. What is the history of  Far Eastern?

Answer: The drilling bits business was started at year 2003 only for China domestic requirement, the name Far Eastern was started from year 2009, now Far Eastern has exported to more than 35 countries and areas. We are one of the earliest Alibaba Gold Supplier members in rock bit field , now we are Gold Plus Member.


5. Do you have Referenced Letters /Recommendation Letters from old customers?

Answer: Yes, we have many referenced letters/recommendation letters issued by old customers who would like to share our stories. 

24'' Replaceable HDD Rock Reamer Hole Opener for Hard Drilling

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