Low water resistance hole gauge

The utility model relates to an oil field drifting operation tool, especially a low water resistance drift well gauge tool capable of combining the function of well drifting and sand flushing, and improving the efficiency for handling the residual cement and scale on the well wall. The technical project is that: A center tube (1) is welded to the outer tube (2) of the drift well gauge tool through a link frame which is composed of no less than three link bar (3). Since the outer tube and the center tube is linked only through a link frame, the water resistance of drilling is widely reduced, the entering possibility of the drift well gauge tool in thick oil well is improved, the trouble caused by thick oil cover existing in well is prevented and the piston-pulling phenomenon when starting drill.