Robart Hinge Point 1/2A (15)This is a package of fifteen 1/2A hinge points fron Robart. This hinge installs by drilling a 1/8" hole and inserting the hinge with a drop of glue. No slotting is needed! To make sure the hole you drill is centered use Robart's Hinge Point Drill Jig. This hinge is suitable for most small air- craft applications and detail work on scale models, such as doors.