Since 1995, we have got experiences of designing ,reserching and manufacturing the rock drilling equipment and the pneumatic tools over 21 years. High quality DTH hammer,DTH bits,RC Hammer&bits,top hammer rock drilling tools drill rigs,and relevant spare parts,most of which are compatible with Altas Copco,Sandvick,Intersoll,Mission,Numa,and Bulroc etc. Guaranteed compensation principles for the tools that ordered from our company. Full support from our company for part selection,operation,service ,replacement and maintenance guidelines. Unbeatable massive production and supply capacity all over China. Warranty of stable quality,decent prices. Our company stands on the top rank with high reputation all over China all the time. our official website:www.worldrill.com our official email: director@worldrill.com the teln of our general manager : +8613906486398