Drilling tool for machining cylindrical boss

The utility model discloses a drilling tool for machining a cylindrical boss, which belongs to the technical field of automobile accessory manufacturing and comprises a tool apron, the tool apron is connected with a spindle connecting piece and connected with a machine tool spindle through the spindle connecting piece, the bottom of the tool apron is connected with a conductor, guide grooves are formed in the bottom of the conductor at equal intervals, and the guide grooves are connected with limiting connecting pieces. The limiting connecting pieces are connected with cutters, the drilling diameters and depths of the adjacent cutters are different, and the bottoms of the cutters are in a horizontal state; by means of the mode, the drilling diameters and depths of the adjacent cutters are different, the cutters in even number positions conduct drilling by 26.8 mm firstly, then the cutters in odd number positions conduct drilling by 17.59 mm, a step-shaped automobile condenser connector component is beneficial