We are a professional productions base of series ofrock drilling tools,mining tools,DTH Drill nstruction tools andexcavating coal pick cutter tools,we can also produce other products accordingto the customers requirements.we sincerely welcomes friends of both home andabroad to come for business talks.
Extension drilling tools
Button bit,face design:Flat face,drop centre,Normaland retrac body.
tungsten carbide(Buttons):Spherical,ballistic andConical.(Threaded R32,T38,T45,T51,bit diametre:45mm-127mm);
Couplings sleeves-manufactured with a middle stop toprevent walking along the thread.Include couplings sleeve(threaded R22,R25,R28,R32,R38,T38,T45,T51)
Shank adaptors-carburized and manufactured with tighttolerances and controlled straightness.

1. According to the technical drawings using standard material specification production
2. Competitive price and products
3. tungsten carbide with reinforcement coal mining drill bits
ntinuous miner, long wall shearing, roadheader
Liaocheng Kaituo Construction machinery Co.,Ltd headquartered in Yanggu, Shandong, incorporating manufacturing, trading and customer service in global mining and engineering construction, services for global mining and civil engineering construction.

Payment: T/T, 30% in advance, 70% before shipment.
Delivery time: about 15-20 days.