Rock DTH Bit for High Air Pressure (4"5"6")

We are a professional productions base of series of rock drilling tools, mining tools, DTH Drill tools. Construction tools and excavating coal pick cutter tools, we can also produce other products according to the customers requirements. We sincerely welcome our friends of both home and abroad to come for business talks.
About products
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 H22X 108mm, (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, R38, T38, T45, T51; Bit diameter: 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 adapters - carburized and manufactured with tight tolerances and controlled straightness.
4. DTH hammers and DTH bits (Down The Hole Drilling)
Offer IR hammer, DHD3.5, DHD340A, DHD360, DHD380, and low pressure hammers CIR65A, CIR90, CIR110, CIR150, CIR170 etc. DTH bits: 60mm-254mm bits with flat face.

DTH hammers & bits with drilling diameter from 3" to 32", eccentric & concentric casing system, reverse circulation hammers/bits, accessories of rock drills and other equipments used in open-pit, underground mining, hydraulic/oil/gas/bridge/construction/geotechnical engineering etc.
Our factory has advanced production technology, and has formed a complete production system, with leading electro-hydraulic hammer, Advanced multi-purpose furnace controlled atmosphere heat treatment production line and Excellent CNC production equipments. All parts CNC machining, CNC control of the key technology to ensure product quality and high reliability.

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, U95, U118 and coal bolting bit and coal bolting rod.
6. All kinds of casing bits for shield machine and construction tools.
7. Round road planning bit for road milling machine and machine.
Shank diameter=19.4mm, 25mm, 30mm, 33mm, 38mm, etc.
8. Blast furnace tap hole drill tools. (Rod, Cross bits, button bits and X-type bits etc).