Abstract: A hammer configuration possessing a conventional striking end opposed to a fastening pin starting end presenting a cylindrical blind cavity enables manual starting of a collared fastening pin typically utilized in fastening metal tracks to typically concrete substrates and driving of the same home with placement of the fastening pin in the blind cavity, striking and penetrating the metal track with the exposed point of the fastening pin embedding the same partially in the substrate, retracting and then rotating the hammer head 180°, and striking the head of the fastening pin with the flat face of the conventional striking end. An optional bifurcated claw on the top of the head provides optimal leverage in conventional use pulling nails also driven by the conventional striking end. Conventional use with nails and similarly driven fasteners and safe, efficient, and reliable starting and driving of collared fastening pins is provided in a single hammer.