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AQ,BQ,NQ,HQ,PQ T2 BTW NTW surface-set diamond core bit, impregnated diamond core bit, reaming shell, core barrel,overshot - details see: https://www.machineto.com/china-drilling-co-hq-surface-set-diamond-core-bit-natural-diamond-10317319

We are one of the professional manufacturerfor mine drilling, and the base of the exploration drilling and diamond drilling tools in China. Our products are used to explore mining and dam drilling. Our products as follows:

1. diamond reaming shells for exploration mining and dam drilling grouting; (They are the AQ, BQ, NQ, HQ, PQ, BQ3, NQ2, NQ3, HQ3, PQ3, TNW, NMLC, HMLC, T2 46,

T2 56, T2 76, T2 86, T2 101, T6 131, T6 146)

2. casing shoes bits; (AW, BW, NW, HW, PW)

3. natural surface set diamonds core bits, synthetic diamonds core bits, PDC bits;

4. NQ HQ BTW NTW core barrels, NQ HQ OVERSHOT

5. core lifter and core lifter case,and other parts;

6. Drill rod: BQ,NQ,HQ,PQ, NT, HT,

Thin wall drill rod: BTW, NTW

We would like to have the chance to provide the above products to you. If you are interested in them (exclusive the DTH bits and the hammers because it is very heavy), we can send the samples to you to try and test. I believe you will be satisfied with our production after your testing.