89 Three-tube High-pressure Jet Drilling Bit are installed at the bottom of the drill rod. The top of the drill bit is inlaid with alloy to facilitate the drilling of the drill rod. Two nozzles are installed on both sides of the drill bit body. The nozzle diameter is between 1.6 and 3.0 mm. An annular gas nozzle is installed around the nozzle to ensure the coaxial injection of slurry and gas. Three single nozzles are installed on the cutter body to spray high-pressure water. For some soft geological structures, the three-tube high-pressure jet drill bit can be slowly lifted and jetted without changing the drill bit after it is emptied to the bottom, which improves work efficiency.
If you are interested in the three-tube high-pressure jet drill bit, please contact us. Every request from the customer will be responded to within 24 hours.