Step 6: Preparation for the Bar
On the swingset, drill a hole on the beam parallel to the 4x4 using the drill and drill bit. Make sure the hole in the 4x4 is the same height up as the hole in the swingset so the pull-up bar will be level. Use a level to double check that the bar will be perfectly horizontal. You don't want to be sliding onto one side of the bar!