Patent ID: 6892922

Claim:
A fastener driving tool for driving fasteners carried by corresponding sleeves of a collation into a substrate, said tool comprising: a gun body having a housing and an axis, the housing enclosing a main chamber; a piston for driving a fastener into a workpiece, the piston having a head and a rod; a nosepiece connected to the gun body and extending axially in a driving direction away from the gun body to a distal end, the nosepiece having a pair of windows at the distal end, the nosepiece configured for receiving the piston rod and for guiding the piston rod and the fastener toward the workpiece; and a work contact element for pushing against the workpiece, the work contact element being associated with the distal end of the nosepiece so that the pair of windows is surrounded by the work contact element; wherein the work contact element has an inner surface that is spaced apart from an outer surface of the nosepiece at the windows by an amount sufficient to create a chamber for receiving pieces of a corresponding sleeve ejected through said windows.