DTH (Down the Hole) drill bit, also called spline connected drill bit, is mainly used in large scale mine (open and underground), open quarry and construction. The hammer is situated down the hole in direct connected with the drill bit with splines in the bit. The hammer piston strikes the drill bit resulting in an efficient transmission of the impact energy and insignificant power losses with the hole depth.

By using high-quality raw materials, utilizing advanced craft technologies and imposing strict quality inspection, the product range covers:Down the hole hammer and bits(dth hammers and dth bits),drill pipes, threaded drilling bits, reverse circulation hammers and bits, shank adapters and coupling sleeves, drilling rig, air compressor and spare parts for drill equipment.

Advantages of our CIR Series Low Air Pressure DTH Drill Bits

1.High quality hardened steel alloy

2.Premium tungsten carbide buttons

3.Optimized flushing holes

4.Multiple shank and face designs

5.Various face and spline configurations

 HE NAN LGMRT Mining Equipment Co.,Ltd  is the professional DTH drill bits supplier! After many years experience we provide the worldwide customers ideal DTH drill bits. Optimized designs improve the drilling efficiency. And automatic production line ensure the quality stability of product. Strict requirements of heat-treatment guarantee durability of the bits.

 CIR Series Low Air Pressure DTH Bits