Mine Tunnel Construction Carbide Drill Bits Earth Pressure Balance Tunnel Boring Machine
Negotiable /Piece
Min.Order:1 Piece
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Size | 7 7/8"(200.0mm) |
IADC | 617GY |
Bearing Type | sealed bearing |
Thread Connection | 4 1/2 reg pin |
WOB(KN/mm) | 0.35~1.0 |
RPM(r/min) | 140~60 |
Make up toqure(KN.M) | 16.300~21.700 |
Weight(kgs/pc) | 35 |
Color | Customized |
Packing | Plywood box(free-fumigation) |
Industrial standard | SY/T5164 |
MOQ | 1 PC |
Payment terms | T/T,Western Union,and L/C are acceptable |
Applications | Medium hard with high compressive strength and thick&hard stringers, such as hard shale, limestone, sandstone and dolomite, etc. |