Offset wrench apparatus

摘要: A pneumatically driven motor assembly causing rotation of the drive shaft, shaft rotating a gear which rotates an idler including pair simultaneously driven, spaced-apart, gears, wrench being by gears with having radial opening therein to be able cooperate polygonal-shaped fastening device, positioning pawl secured stop longitudinally movable along upon actuation trigger, release trigger contacts thereby locating in particular predetermined positioned.