700 DOOR VIEWER| ; r% ) 'elves * DOOR VIEWER FOR USE ON DOORS THROUGH THICK. PROVIDES ONE-WRY, SHARP ANGLE VIEW FOR ADDED SECURITY. FEATURES #GROUND GLASS LENSES THAT INSURE LONG LASTING CLARITY, INSTALLATION INSTRUCTIONS TOOLS REQUIRED: Drill, 1/2” drill bit, screwdriver and pencil, . Positional eye level in center of door. Mark and drill /2 dia. hole completely through door. 2. Place receiver tube section (A} through washer (B) and insert troy hole from inside from @zl .