Abstract: A fastener tool handle adapter apparatus is removably attachable to a fastener tool, such as a pneumatic stapler or nailer. A handle adapter has an elongated arm having a handle on one end and a fastener tool attaching portion on the other end thereof. The tool attaching portion is shaped to fit over a fastener tool handle for attachment thereto with a plurality of attachment members. A pair of legs are positioned along the fastener tool firing head and shaped to shield the firing head. The elongated arm also has a trigger arm positioned to rotate a trigger pull member on one end thereof beneath the fastener tool trigger and to actuate the fastener tool by sliding the trigger arm and trigger pull member against the fastener tool trigger so that the fastener tool can be operated remotely. The handle adapter legs each have an aligning foot on one end thereof for aligning the fastener tool firing head.