Cylindrical Integrated Valve Assembly

A pneumatic fastening tool that has an integrated valve assembly. The integrated valve assembly can have a cylindrical valve assembly housing that can house a portion of a head valve assembly and can also house at least a portion of a trigger valve assembly. The head valve assembly can have a head valve body that can be maintained in a resting state by compressed air. The compressed air that maintains the resting stat of the head valve assembly can be provided by one or more passages formed in the valve assembly housing. The valve assembly housing can also guide the movement of the valve head body when the trigger valve assembly is actuated causing a fastener to be driven into a workpiece. The valve assembly housing can have a circular exhaust seal and a cylindrical exhaust chamber through which compressed air can be exhausted after the driving of a fastener into a work piece.