Patent ID: 9120160
Filing Date: 2015-09-01
Classification: B23B,B23Q,B25B,B25F

Abstract:
1. A drill comprising: an air motor assembly having an output spindle; a head attachment having a cutter spindle, the head attachment removably connected to the air motor assembly; wherein the head attachment further comprises: a drive assembly, the drive assembly driven by the air motor assembly; a transfer gear assembly engaged with the drive assembly, the transfer gear assembly driven by the drive assembly; a drill spindle assembly engaged with the transfer assembly, the drill spindle assembly driven by the transfer assembly; and a cutter spindle attached to the drill spindle assembly and capable of feeding and retracting; wherein the head attachment is capable of being configured in at least (i) a first mode in which the cutter spindle is parallel to the output spindle of the air motor assembly, and (ii) a second mode in which the cutter spindle is orthogonal to the output spindle of the air motor assembly.