Cylinder block class deep hole inner wall radial drilling tool

The invention discloses a cylinder block class deep hole inner wall radial drilling tool. The cylinder block class deep hole inner wall radial drilling tool comprises a base, a bracket, a power transmission part and a transverse rod part. The transverse rod part comprises a transverse rod shell, the power transmission part comprises a connecting rod, a connecting sleeve and a spindle, the connecting rod is connected with the connecting sleeve, a bulged baffle block is arranged in the middle of the spindle, the connecting sleeve sleeves the the outer side of the upper part of the spindle, and the spindle is fixedly connected with the connecting sleeve. A first thrust ball bearing sleeves the spindle, a retaining cover is arranged between the first thrust ball bearing and the bulged baffle block, a driving gear sleeves the lower part of the spindle, and a second thrust ball bearing sleeves the lower part of the spindle. A plurality of driven gears are arranged in the transverse part of the transverse rod shell,