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English  |
| Quantity: | |
|---|---|
Double Casing Drilling Bits
BESTLINK
Application Range (DTH hammer type drilling inside the case) It can be widely used in drilling for grouting holes in projests such as cofferdam, foundation and geothermal well and etc.
Features:
1.Hardening treatment of the parts surface with longer operating life
and excellent anti-wear properties
2.Structure optimization Strengthen the structural
3.Superior performance Smooth with high efficiency
Technical Data | ||||||
A | B | C | D | E | F | G |
outer dia | reamed dia | inner dia | thread | drill rod | drill bit dia | thread |
(mm) | (mm) | (mm) | mm | mm | mm | |
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 |
Application Range (DTH hammer type drilling inside the case) It can be widely used in drilling for grouting holes in projests such as cofferdam, foundation and geothermal well and etc.
Features:
1.Hardening treatment of the parts surface with longer operating life
and excellent anti-wear properties
2.Structure optimization Strengthen the structural
3.Superior performance Smooth with high efficiency
Technical Data | ||||||
A | B | C | D | E | F | G |
outer dia | reamed dia | inner dia | thread | drill rod | drill bit dia | thread |
(mm) | (mm) | (mm) | mm | mm | mm | |
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 |
