Clecoed the HS-1016 stringer web to the forward stringer assembly and used the angle drill to match drill the associated holes.  Put a #40 bit in the drill then match drilled all the holes in the skins.  I used a marker to circle the rows on the skins as I match drilled them to keep track of what was already done.  Took some tape to cover the holes on both the skin and the ribs for the empennage fairing screws as well as the tip fairings.

90 degree attachment match drilling holes in the HS-1016 not accessible by anything other drill.

Everything is match drilled and ready for disassembly.

All parts removed from the skins and ready for deburr.

90 degree angle drill attachment in the ROHM chuck.  The keyless chuck is really nice to quick change bits.