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Yanggu Zuanxing Rock Drilling Tools Factory is the professional manufacture and exporter of Rock Drilling Tools ,Mining Tools; Our main products are rock drilling tools and mining tools, including five series, more than 500 types .They are chisel bits , Tapered button bits, retrac button bits, coupling ,shank adapters ,crossover coupling ,drifting rods ,tapered rod interal drill steel ,retrac X-type bits, cross bits , high/low pressure thread drilling tools, DTH bits ,reaming bits ,mineral picks, we have more experiences in exporting with leading quality ,and we got the certificate of ISO9001 in 1999. Main products: Chisel bit: 26mm,28mm, 30mm,32mm,34mm,36mm,38mm,40mm,42mm Tapered button bits (28mm,30mm 32mm,34mm,36mm,40mm,42mm,44mm and so on with different degree taper) Tapered Rod(Rod 19mm ,22mm ,25mm;Shank hex. 19mm, 22mm,25mm) Integral Drill rods (Chisel Bit interal. Rod 19mm,22mm;Shank hex.19mm,22mm) Thread Button Bits( 33mm, 35mm,45mm, 51mm,57mm, 64mm,70mm, 76mm, 89mm,102mm,115mm,127mm and so on , different degree Thread for example : R22 , R25, R28, R32, R38, T38, T45,T51 etc.) Drifter Rod (Hex. 32mm ,35 mm ,38mm; Round 32mm , 38mm ,45mm ,51mm) Retrac button bits with different Thread different diameters: ( 51mm,64mm ,70mm,76mm; 89mm, 102mm ,115mm,127mm.) Down the hole drilling(drill bits, hammers ,spare parts ,drill tubes) Coal Mining picks: Coal auger bits , Mining picks Button type :Spherical ,Ballistic Dilling Tools, Downhole Tools ,Tricone Drilling tools and Coal Mining Tools. We have our own special steel factory, we supply the material for rock drilling tools ,so the quality is good ,but the price is low . Chisel drill Bit