Dead blow hammer head

A hammer head (100, Figure 1) includes a body 102 adapted to be coupled to a handle. The body has opposed first 106 and second 108 ends. The first end is adapted to be struck against a work piece. An end cap 104 is coupled to the second end. An internal cavity 114 having a longitudinal axis 120 and a cavity cross-sectional dimension is formed in the body. Weights 302 are disposed in the internal cavity and arranged linearly along the longitudinal axis. Each of the weights has a cross-sectional dimension that substantially corresponds to the cavity cross-sectional dimension. The weights are longitudinally movable along the longitudinal axis. The weights may be spherical in shape. The combined length of the weights may be less than the cavity length. The end cap may be releasably coupled to the second end. An alternative hammer head includes weights (402, Figure 7) longitudinally disposed in an internal cavity, with each of the weights having a deformable end 410, 412. The weights may have a rod shape. The weights are sized to restrict them from escaping from a crack in the hammer, ensuring foreign objects do not contaminate sensitive work spaces.