Abstract: A tool (10) includes an elongated shaft (11) having a handle (12) mounted at one end, a working implement (14) mounted to an opposite end, and a sliding weight (16) journalled upon the shaft for movement between the handle and working implement. The working implement includes a handle (41) which is mounted to the end of the shaft and a head (42). The handle has a longitudinal axis LA. The handle head mounting end (44) having two spaced apart flanges (45). Each flange has a central pivot hole (46) and a pull pin hole (47). The head has a central mounting portion (49) and an impact head (51) with an impact surface (52). The central mounting portion includes a central pivot hole (53), which is alignable with the handle flange central pivot hole, and an arcuate series of set pin holes (54), which are alignable with the handle flange set pin holes. A pivot pin (56) extends through the handle flange central pivot holes and head central portion pivot hole.