A hammer device is provided for facilitating the driving, countersinking, and removal of relatively small fasteners, such as penny nails. A hammer includes a handle that can define an on-board tool storage area. A nail start accessory can include a tool portion and a nail holder portion. The tool portion can have a first end and a second end, with the nail holder portion being arranged at one of the first end and the second end. The on-board tool storage area of the hammer can be configured to removably store the nail start accessory substantially within the handle.