Changsha Tianhe Drilling Tools and Machinery Co.,Ltd. is a manufactory and exporter  company  of rock drilling tools, DTH hammer and bits in China.We are committed to providing  high-quality DTH hammers and bits of size range from "3" to "32" which can matched with COP,QL,SD,XL,DHD etc.We have approval CQM ISO9001:2000 Quality System Certificate. Our products are sold to the South Afica, Canada, Russia, korea market.

The Tianhe DTH drill bits are made from hard alloy and special steel, which have high strength, high wear resistance and long life features. They can be widely applied in open-pit or underground mining,hydraulic engineering,oil and natural gas engineering ,bridge engineering,construction engineering,geotechnical engineering and some other fields.We can design and produce different drill bits according to custometrs' different requirements. Our company has passed ISO: 9001: 2000 qualities administer system certification. Our products have been sold to more than fifty countries.

(1) Size: 76mm-800mm

(2) DTH Hammer: 3”-16”.

(3) Package: in wooden case
(4) Productivity: 3000pcs/month