ZQ Series DownHole Bits
Description
The main structure features:
—Adopting high quality tungsten carbide compacts，the series bit is wear-resistance ，long working life.
—Bit body adopts high strength alloy steel,working is reliable.
—Coupling:he big-and-middle-sized bit is coupled by spline,the small-sized bit is coupled by waveform thread.
—Air-compressed disposes slags.