130CIR110 low air pressure DTH bit 130CIR110 low air pressure DTH bit have powerful drilling capacity,Website:http://www.pulanka.com, great reliability and low operating cost. Advanced production technologies and skillful design, as well as high quality materials result in good performance, long service life, simplicity and endurance. Thus, our drilling tools are widely used for drilling and quarrying in mining industries and other construction fields.Product Description： Name:130CIR110 low air pressure DTH bitMaterial:Steel