a device for impacting a fastener in one embodiment includes a drive channel , a cylinder opening at an end portion to the drive channel , a microcellular polyurethane elastomer bumper fixedly positioned at the end portion of the cylinder , the mpe bumper including a drive bore extending therethrough and aligned with the drive channel , and an outer wall defining a plurality of grooves extending radially about the mpe bumper , and a drive mechanism including a drive blade aligned with the drive bore .