Vintage 70's TRW Greenfield 5/16-24 NF H3 Hand Tap Set USA Machinist Tool HS 3pc

Pre owned vintage condition. Taps show light oxidation, minor surface discoloration, and storage wear visible in photos. Threads appear sharp and intact. Original box shows heavy wear, edge fraying, label wear, and adhesive residue on top. SMOKE/PET FREE HOME Please feel free to contact me with any questions :) Vintage TRW United-Greenfield machinist hand tap set for cutting 5/16-24 NF internal threads, made in the USA. This set includes three high speed steel (HS) taps, typically consisting of taper, plug, and bottoming taps for progressive threading. Markings visible on taps: TRW 5/16-24 NF GH3-HS MADE IN USA Original box label reads: 14125 5303 5/16-24 NF H3 This is a vintage Greenfield Tap & Die Division tool, likely produced in the 1970s–1980s, known for durable USA-made machining quality. Ideal for machinists, tool collectors, or shop use. Box shows visible wear and aging, while taps remain functional with intact cutting edges. Please review all photos closely for condition details. Measurements Tap length: approx 3.75 in Thread size: 5/16-24 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