down the hole bits

1.Lower oil, air consumption
2.Medium and high air pressure DTH hammer bits
3.Air Holes:2,3,4
4.Diameter:254,305,311,318,330

 
Custom 3 Inch 4 Inch R32 Reamer Drill Bit Hole Cutting Drill Bit
 
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Wireline Diamond Imp And Surface Set  Core Drill Bits &nb

 
Metal Gray Universal Tool Grinder Deep H

 
Spherical Bench / Long Hole Tungsten Carbide Drill Bit Set 4-6 Inch
 
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1.Reamer bits for soft,hard rock
2.Size:up to 1700mm
3.Certified by ISO,API
4.High quality best price
5.Timely deliver

Retractable Rock Drill T38 Thread Button Bits 64mm

 
Single Cone Bit Tricone Drill Bit hole opener drilling 4 1/2" , 4 5/8" , 4 3/4"
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2 Hole Quarry Benching DTH Drill Bits Rock Drilling Tools 130 - 133mm
 
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Large Diameter Reamer Bit
1. Steel tooth & TCI available
2. 6"-42" in diameter
3. Strict Quality Control System

1.Lower Oil, Air Consumption
2.Medium And High Air Pressure DTH Hammer Bits
3.Air Holes:2,3,4
4.Diameter:254,305,311,318,330
5.Deep Hole Drilling

 
Set 4-6 Inch Button Drill Bit For Long Hole Tungsten Carbide
 
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Size from 3 7/8" to 26" Covers almost all IADC code. Stocks adequate&timely delivery Good quality and after-sale service

 Industrial T38 3 inch Rock Drilling Tools Cross Bits With 3 Hole <span style="font-fa

Down the hole carbide drill bits:
1 deep hole drilling
2 Diam 68mm-511mm
3 No. of air holes 1 2 3 4
4..Medium and high air pressu

 
ST68 CNC Milling Dome Large Hole Cutting Drill Bit Rock Drilling Tools
 
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Specifications
API 7 7/8" TCI Drill Bit/Insert Tricone Rotary Bit/Hard Insert Rock Bit for Drilling
Ship by sea or air
Good quality and price

Adapted to be used in very soft to medium soft with low compressive strength and high drillability(mudstone, loose sands, soft limestone, shale,etc.)

1.Lower Oil, Air Consumption
2.Medium And High Air Pressure DTH Hammer Bits
3.Air Holes:2,3,4
4.Diameter:254,305,311,318,330

 
ST68 CNC Milling Dome Large Hole Cutting Drill Bit Rock Drilling Tools
 
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3PC High Carbon Steel Hole Saw Doubled Blister For Wood / Plastic Cutting
 
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1.Reamer bits for soft,hard rock
2.Size:up to 1700mm
3.Certified by ISO,API
4.High quality best price
5.Timely deliver

Down the hole carbide drill bits:
1 deep hole drilling
2 Diam 68mm-511mm
3 No. of air holes 1 2 3 4
4..Medium and high air pressu

Specifications
1.Certified by ISO9001&API
2. High quality with reasonable price
3. Fast drilling rate

Drills-king concave bits pdc drill bits is mainly used for water well, geothermal well, geological exploration borehole, gas drainage hole

Description
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Multiple types of high performance PDC cutter are strategically arranged on the bit for improved
service life the bit.

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Hole reamer bit Opener any sizes
1. Steel tooth & TCI available
2. 6"-42" in diameter
3. Strict Quality Control