This cleverly designed tool will space up to 5 nails head to head at one time without placing your fingers in danger. The technique is to load the large end of the tool making sure that the nails are positioned in the perpendicular and flush with the base. Position the tunnelled end of the tool over the last nail placed and begin setting the nails in place. Make sure to remove the tool before the nails are completely driven home use a twisting action to pull the nail placer free. The small end of the tool allows you to set nails one at a time.