Patent ID: 6702531
Filing Date: 2004-03-09
Classification: B23B,B23C,B23Q,Y10T

Abstract:
A hand tool apparatus for using a cutting tool with a first width and a tool axis to machine a hole in an object, the hole having a second width that is larger than the first width of the cutting tool, the tool axis passing through a predetermined point on a surface of the object, said apparatus comprising:a housing; a pneumatic axial feed mechanism contained in said housing and configured for moving the cutting tool in an axial direction; a pneumatic actuating assembly contained in said housing and comprising: a first motor configured for rotating the cutting tool about the tool axis; and a radial offset mechanism configured for moving said cutting tool in a radial direction such that the tool axis is offset from a principal axis, said offset mechanism including an outer cylindrical sleeve and an inner cylindrical sleeve rotatably supported in an eccentric hole in the outer sleeve; and a second motor fixedly contained in the housing and configured for rotating said pneumatic actuating assembly and the cutting tool about the principal axis, said second motor disposed radially outwardly of and in substantially side by side relation with said first motor relative to said principal axis such that said first and second motors each extend longitudinally over an axial linear extent such that there is a substantial amount of overlap of the axial linear extents.