1, Use with PW casing rod;
2, Widely used in mining, water well drilling and geological drilling;
3, Fit for hard formation drilling;
4, We also supply BW, NW, HW, HWT, PW etc casing shoes and impregnated core bit with AQ, BQ, NQ, HQ, PQ, NMLC, HMLC etc. If you are interested in any of them, please feel free to let me know.