We supply many sizes bits: AQ,BQ,NQ,HQ,PQ/AQTK,BQTK,BQ3,NQ2,NQ3,NQTT,HQ3,HQTT,PQ3,PQTT,T2 46,T2 56,T2 66,T2 76,T2 86,T2 101..etc

We are the biggest manufacturer of diamond bits,reaming shells,casing shoes,PDC bits,wireline drill rods,casings,core barrels for mining,exploration industries in China.

1. Impregnated diamond core bits
2. Surface set Diamond Bits(coring bits and non-coring bits)
3. Casing(Rod) shoes/Casing bits
4. Reaming shellsCoupling,Adaptor Coupling,Inner Tube Stabilizer Ring,Landing Ring,Landing Shoulder etc)
8. NQ & HQ overshot. * We can manufacture all kinds of products according to customer's special requirement.

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