Satisfeito com qualidade, entrega e funcionalidade do item.
Vintage 70's TRW Greenfield 1/4-28 NF H3 Hand Tap Set USA Machinist Thread Tool
Product Details
SMOKE/PET FREE HOME Please feel free to contact me with any questions :) Vintage TRW United-Greenfield machinist hand tap set for cutting 1/4-28 NF internal threads. This set includes two high speed steel taps stored in the original TRW United-Greenfield blue box. Tap markings include: TRW 1/4-28 NF H3 HS U7 USA These vintage USA-made machinist tools are straight flute hand taps typically used with a tap wrench for threading steel, aluminum, and other metals. TRW United-Greenfield cutting tools are well known in machine shops for durability and precision, and older USA-made versions are sought after by machinists and tool collectors. Original box label shows: Part numbers 14058 5303 and size 1/4-28 NF H3 Please review all photos carefully for condition and markings. Measurements Tap length: approx 3.25 in Thread size: 1/4-28 NF Shank size: approx 1/4 in 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
Daily Cleaning: Use a soft brush or damp cloth to gently wipe away dirt. Avoid harsh chemicals. For mesh areas, use diluted mild detergent and a soft brush.
Drying: Air dry in a cool, shaded place after cleaning. Avoid direct sunlight or high heat, which can cause fading and glue deterioration.
Storage: Stuff with paper to maintain shape when not in use. Store in a dry, ventilated area to prevent mold. Rotate between multiple pairs to extend lifespan.
Usage Notes: Designed for basketball. Not recommended for hiking, long-distance running, or other specialized sports where different performance features are required.






