Vtg 60's USA HSS Hand Tap Set 9/16-20‎ NF GH3 Machinist Tool 3pc Taper Plug HS

Pre owned vintage condition. Taps show light oxidation, surface discoloration, and minor wear from storage. Threads appear sharp and intact. Original red box shows edge wear, fading, and handling marks consistent with age. SMOKE/PET FREE HOME Please feel free to contact me with any questions :) Vintage USA-made high speed steel (HSS) hand tap set for cutting 9/16-20 NF internal threads. Includes a full 3-piece set typically consisting of taper, plug, and bottoming taps. Box markings read: ONE SET TAPS TAPER / PLUG / BOTTOMING MADE IN U.S.A. End label shows: 1 SET H.S. TAPS Tap markings visible include: 9/16-20 NF GH3 HSS This is a vintage machinist tool set, likely produced in the 1960s–1970s, featuring USA-made high speed steel construction known for durability and precision. Ideal for machinists, collectors, or shop use. Older USA-made taps like these are increasingly sought after for their build quality. Please review all photos carefully for exact condition. Measurements Tap length: approx 4–4.5 in Thread size: 9/16-20 NF Set includes: 3 taps SHIPPING & RETURNS Ships via USPS Ground Advantage (or Priority Mail if item weight exceeds 1 lb) Handling Time: 1 business day Returns: 30-day return window; buyer pays return shipping