| 摘要 |
A hand tool apparatus uses a cutting tool (58) with a tool axis to machine a hole in an object. The apparatus includes a housing (29) containing a pneumatic axial feed mechanism (24) and an actuating assembly (12). The actuating assembly (12) comprises a first motor (26) configured for rotating the cutting tool (58) about the tool axis, and a radial offset mechanism (28) configured for moving the cutting tool (58) in a radial direction such that the tool is offset from a principal axis constituting the center axis of the hole to be machined; and a second motor (38) fixedly contained in the housing and configured for rotating the pneumatic actuating assembly (12) and the cutting tool about the principal axis. The second motor (38) is disposed radially outwardly of and in a side by side relationship with the first motor (26) relative to the principal axis such that the first and second motors (26, 38) each extend longitudinally over an axial linear extent such that there is a substantial amount of overlap of the axial linear extents. |
