Powerful single shot, trigger operated powder actuated tool. Made of heavy-duty steel construction. Fastens wood to cement, metal to cement, or metal to metal. Uses standard .22 caliber medium load single shot powder loads. Positive barrel and load retention prevents barrel from opening freely, allowing easy horizontal and overhead fastening. After each use ejects the powder load automatically. Rubber cushioned handle for comfort. SPECIFICATIONS: Pin Capacity: 2 1/2 in (3 in w/washer).