Design principles: Make the casing follow easy and the equipment and operation simple.
Outstanding advantages: Simple structure, simple operation, reliable quality, retriveable drilling tools, long service life.
2. Size:Casing pipe with 76mm-127mm
3. Matched drill rig:Tunneling face drilling rigs
4. Application:Grouting,Anchor drilling
Product Name | Top Hammer drilling tunnel drilling tools for Geotechnical Engineering Pipe roofing |
Casing pipe Material | ST52 |
Concentric material | Alloy steel |
Standard | DIN GB ISO JIS BA ANSI |
Casing pipe OD. | 76MM,89MM,114MM,127MM,140MM |
Thread type | T38,T45,T51 |



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