Why different air pressure down the hole tools can't switch?

Down the hole tool is an important tool in mining, water well drilling, oil drilling, exploration drilling, geothermal drilling and railway construction etc. They are design for hard formation drilling and use with air compressor when drilling. We supply the DTH Hammer and bit with high air pressure, middle air pruess and low air pressure, low air and middle can switch because of their dth bit shank is similar and the pressure and compact toughness similar, so sometimes can switch. High air pressure down the hole tools can not switch because of dth bit shank is different, and their compact toughness is different becuase of the air pressure, so can not switch. The best way is low air pressure dth bit to match low air dth hammer, middle air pressure dth bit to match middle air pressure dth hammer, high air pressure dth bit to match high air pressure dth hammer. Xi'an Heaven Abundant Mining Equipment Co.,Ltd is one of the professional DTH drilling tool, Taper Button Bit, Thread Button Bit, Drill Rods etc Rock Drilling Tool manufactuers and exporters in China. If you are interested in our products, please feel free to contact us by Lucy@tydrillbits.com.