An electronic assembly is provided having a die, a heat spreader, and a solidified solder material. The minimum backlash distance X is equal to htan \u03b8, where h is the height of the rack teeth, and \u03b8 is the angle of the cam guide surfaces relative to the protruding direction of the plunger. The tool is improved with the addition of a switch to convert the tool from a multiple impact tool to a single impact tool, preferably through the use of a Hall effect switch. The pawl assembly is mounted to the housing for movement of the roller relative to the ratchet between a first arcuate portion and a first radial portion of the slot.