JSI ROCKTOOLS, is a specialized manufacturer & supplier of Rock Drilling Equipments & Tools for Mining, Civil Engineering, Water Well Drilling & Quarrying: - Button bit, Chisel bit, Cross bit, Extension rod, Taper drill rod, Integral drill rod - Down The Hole hammers, DTH bit, Drill tube - Hand held drill, Pusher leg drill, Breaker - Drag bit - Rock bolt - TapHole drilling tools We have been exporting the above products to 43 countries & regions, and won high reputation with Reliable quality, Competitive prices, Strong after-sales service & Prompt response toward every inquiry, which definitely make your cost more effective. Please visit our web WWW.JSINTL.COM.CN to know about our company and products in detail. Should any of them be interested of you, please feel free to contact us, we will be happy to offer further information, catalog & quotation. We are looking forward to receiving your kind comments & favorable reply. Yours Sincerely, JSI ROCKTOOLS 11F,