The present disclosure elaborates on a prior disclosure related to making a powered impact device. That device could optionally attach to a power tool, have adjustable energy per impact, or have an elongated body so the impact energy is generated close to the impact target. The present disclosure relates to a design of the impacting device using a barrel cam to increase the stroke length and make the stroke length adjustable. Further, the present disclosure also relates to several safety features of the impacting device. These safety features include the ability to discharge any stored energy when not in use, the ability not to be damaged when the drive shaft is driven in the wrong direction, and a push to activate feature that reduces the chances of a potentially destructive air strike. Further, the present disclosure elaborates on alternative tool heads.