| 摘要 |
The hand tool includes a drive shaft formed with axially spaced cylindrical portions has a work engaging member thereon. A bearing assembly comprised of two oppositely acting clutch units slideable within a tubular handle to engage one or the other of the cylindrical portions on the drive shaft to determine the direction in which the drive shaft rotates. When the clutch units are engaged with both cylindrical portions, then the tubular handle is coupled directly to the drive shaft so that the shaft is rotated in whichever direction the handle is twisted.
|
