Brief Description: Roll Bar - Drill roll bar straps to bottom channel
As you can see, match drilling the center straps through the previously drilled channel flanges is an easy task using the angle drill. Trying to drill the channel and strap together using the angle drill would be difficult to keep the drill from wondering from the desired location. The location of the strap was found using the technique of the previous log entry.
As per plans, clamp the channels down flat and drill starting at the top and work down the side and use lots of clamps.