Practical drilling auxiliary tool

The utility model relates to the technical field of drilling auxiliary tools, in particular to a practical drilling auxiliary tool which comprises a tool bottom plate, fast fixing assemblies are symmetrically arranged on the front side and the rear side of the tool bottom plate, and an auxiliary limiting assembly is arranged in the center of the end face of the tool bottom plate. The left vacuum suction cup and the right vacuum suction cup which are arranged in the quick fixing assembly are quickly adsorbed on the surface of an object to complete fixation, so that the problems that the fixing structure of an existing drilling auxiliary tool is too simple, a plurality of screws are needed to be matched for fixation, and the work efficiency is high are solved. The problems that a large amount of time and manpower need to be consumed for installation and fixation before drilling work, and the working efficiency is reduced are solved, the device is more convenient and rapid to use, and the practicability of the d