Abstract: A pneumatic tool assembly is disclosed. The assembly includes a swivel backhead that is connected to a pneumatic tool using a retainer ring and two slip rings. One of the slip rings is placed between the swivel backhead and the pneumatic tool and allows the swivel backhead to rotate with respect to the pneumatic tool. The second slip ring is positioned between the swivel backhead and the retainer ring and allows the swivel backhead to rotate with respect to the retainer ring. An L-shaped handle is rotatably connected to the swivel backhead for use in holding and operating the pneumatic tool. A locking mechanism is connected to the handle and includes a hand retractable spring loaded plunger. The retainer ring includes a plurality of locking openings for receiving the plunger. The plunger is used to fix the swivel backhead at a desired position by inserting the plunger into one of the locking openings in the retainer ring.