Patent ID: 8075229
Filing Date: 2011-12-13
Classification: B23B,B25B,Y10S,Y10T

Abstract:
1. A tool comprising: a tool housing containing a motor defining a motor output end drivingly engaged with a speed change mechanism; a spindle having a first end and a second end with the second end being driven by the speed change mechanism; a chuck body having an axial forward end, an axial rearward end, a ledge extending radially outward from the chuck body, and a tail extending axially rearward of the ledge, the chuck body being drivably coupled to the first end of the spindle, wherein the speed change mechanism is selectively operable to change a speed of the chuck body; a plurality of jaws axially moveable within bores provided in the chuck body; and a support bearing having an inner periphery fixed to the ledge and having an outer periphery mounted on a housing, wherein when the jaws are in a back position, a rear portion of the jaws extend axially rearward of the support bearing and into a cavity defined within the housing.