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pilot bit
1.suitable for guided drilling in the soft soil formation.
2.different pilot plates and alloy materials can be flexibly selected according to the specific geological engineering,thus effectuvely promote the construction efficiency.
3.two types of pilot bit,the first form:with the octagonal connection which passes the torque,prevents damage or seizure of the thread connection,facilitating disassembling of the pilot bit.the second form:without the octagonal connection.
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Audited Supplier 
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