We are a professional productions base of series of rock drilling toolsï¼?mining tools , DTH Drill tools. construction tools and excavating coal pick cutter tools, we can also produce other products according to the customers&＃039; requirements .we sincerely welcomes friends of both home and abroad to come for business talks. 1. Integral drill steels(Integral Drill Rods) Shank H22x108mm, H19x108mm, standard hex. Bit diameters include 20-42mm. 2. Tapered drilling tools(Tapered Drill Steel) Including: Shank H22x108mm, (6, 7, 11, 12 degree taper) taper rods in most lengths. A comprehensive range of button bits, cross bits and chisel bits with(6, 7, 11, 12 degree taper). Bit diameter:28mm-57mm. 3. Extension drilling tools Button bit, face design: Flat face, drop centre, Normal and retrac body. tungsten carbide(Buttons): Spherical, ballistic and Conical.(Threaded R32, T38, T45, T51, bit diametre:45mm-127mm); Couplings sleeves- manufactured with a middle stop to prevent walking along the thread. Include couplings sleeve(threaded R22, R25, R28, R32, R38, T38, T45, T51) Shank adaptors - carburized and manufactured with tight tolerances and controlled straightness. 4. Down the hole hammers and DTH bits(Down The Hole Drilling) Offer ir hammer, DHD3.5, DHD340a, DHD360, DHD380, and low pressure hammers CIR65a, CIR90, CIR110, CIR150, CIR170etc. DTH bits:60mm-254mm bits with flat face, concave design fit for the atlas copco and ingersoll-rand model etc. 5. Excavate coal cutter bits Include all kinds of round cutter bit and flat cutter bits for excavate coal machine as the replacements of kennametal. Such as U76, U82, U84, U85, U92, U94, U 95, U118 And coal bolting bit and coal bolting rod. 6. All kinds of casing bits for shield machine and construction tools. 7. Round road planing bit for road milling machine and trenching machine. Shank dia=19.4mm, 25mm, 30mm, 33mm, 38mm, etc. 8. Blast furnace tap hole drill tools. (Rod, Cross bits , button bits and X type bits etc)