This is a vintage Radnor Automatic Drill Index box set, designed to hold a complete set of A-Z letter size drill bits. The sturdy metal index is clearly marked with drill sizes and includes general tap information, tap drills for taper pipe taps, and American Standard machine screw information on the inside lid. The box proudly states 'Made in U.S.A.' and features 'Automatic Drill Index A THRU Z' on the exterior. While the index is present and in good condition, please note that the drill bits themselves are included as a partial set, and some may be missing or show signs of wear/damage (see photos for exact condition and contents). This is a great piece for a workshop, collector, or for completing an existing set.