Patent ID: 7008151

Claim:
A power driver with a geared tool holder, said power driver comprising: (a) a power driver motor having an output shaft; (b) a power driver housing that defines a chamber in which said output shaft is disposed; (c) an assembled geared tool holder that includes a generally cylindrical chuck body having a nose section and a tail section opposite said nose section, wherein said nose section has an axial bore formed therein and wherein said axial bore is configured to receive a tool therein, a plurality of jaws disposed within said chuck body and movable toward and away from said axial bore, a planetary gear assembly disposed operatively about an axis of, and in driving communication with, said tail section so that a plurality of input planetary gears of said planetary gear assembly are each simultaneously rotatable about a respective gear axis in driving engagement with each other to rotationally drive said chuck body about said axis of said tail section when said jaws grip said tool received within said axial bore, and a tool holder housing, at least a portion of which is shaped matingly with respect to at least a portion of said chamber; and (d) wherein said output shaft is directly received in driving engagement with said input planetary gears and so that said at least a portion of said tool holder housing is matingly received by said chamber to axially retain said assembled geared tool holder within said power driver housing.