Double flush riveted Magnetometer Mount for Garmin GMU22. Even with deeper machine CS on shop end, still required light filing to get flush. Very pleased when slid into receptacle in LH Wing with snug fit - no UHMW tape needed as option suggested in instructions if loose. Returned to Sect 17-09 Steps 1-5 for Landing Light Lens in RH Wing. More cutting Plexiglass - thicker than Tip Lens, so takes longer with dremel/cutoff wheel. Good instructions, including covering with masking tape. Less concern with scratching Lens. Positioned and drilled 8 #30 holes with plasti - drill. Enlarged using Uni-bit at 5/32 (slightly oversized vs recommended #27 drill). Note: Uni-bit recommended by Vans at Sect 5.19 general instructions - works great on plastic to enlarge holes, and chamfer edge of hole too.
