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Vertical Horizontal and Inclined Borehole Drilling Double Casing Bits

Vertical Horizontal and Inclined Borehole Drilling Double Casing Bits

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  • Double Casing Rock Drilling Bits Crown Bit
  • BESTLINK

Vertical Horizontal and Inclined Borehole Drilling Double Casing Bits


We are a leading manufacturer of rock drilling tools, like DTH hammers and bits, DTH drill pipes, RC hammers and bits, top hammer button bits, coupling, cross bits, drill rods located in Xiamen, Fujian, China.
 

DTH and Top Hammer type Double casing drilling tools

T38 T45 DHD340 DHD350 Double Casing Rock Drilling Bits Crown Bit Inner Opener Bit

Applicationrange

Suitable for geothermal drill for grouting, sampling, water well drill, foundation drill etc.

Workingprinciples

Double head rotary percussive casing system utilizes a rotary head to drive the outer casing equipped with a tungsten carbide crown and a hydraulic drifter (top hammer) to drive the inner drill string equipped with a percussive drill bit. This is an excellent method for drilling straight holes in varying ground conditions. The water and compressed air can be both provided as power.
 

Outer Dia.
 (mm)

Reamed Dia
 (mm)

Inner Dia
 (mm)

Thread Size
 (mm)

Drill Rod Dia
 (mm)

Drill Bit Dia
 (mm)

Thread

118

125

88

104.5

76

83

R56

133

140

108

122

76

102

R56

146

152

120

134

89

116

R78

168

172

133

146.5

114

128

R83

216

225

178

203

114

165

R102


Quality warranty
Our products are made of high quality steel and all spares parts are inspected strictly before shipping.

Production time
within 15-25 days after receiving the advance payment or full payment

Transportation
according to your requests.

Package
The material of packing is ply-wooden cases and pallet to avoid the damage in transportation.

Double Casing Drilling Bit 1

Double Casing Drilling Bit 5

Double Casing Drilling Bit 9

Bestlink Factory

Xiamen Bestlink Factory Co., Ltd  is  committed  to  provide  the  best  drilling  and  cutting machine,  tools and accessories products in marble and granite stone quarrying,  as well as in civil engineering application, especial demolition project. it is now a leading manufacturer of cutting and drilling equipment for the extraction of marble, granite  and ornamental stones in china.  

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