This is a vintage Smitty Folding Hex Key Set , model IR-3 , manufactured by H.D. Hunter & Co. in Santa Fe Springs, California. This authentic “Made in USA” tool features a classic fold-out design with multiple hex (Allen) wrenches housed in a durable metal casing.
Product Details:
• Brand: Smitty (H.D. Hunter & Co.)
• Model: IR-3
• Type: Folding Hex Key / Allen Wrench Set
• Origin: Made in U.S.A.
• Patent No: 156677
• Material: Steel casing and hex keys
Condition:
• Overall: Used / Vintage.
• Specifics: The tool shows significant signs of age and use. There is visible heavy rust and oxidation inside the casing and on several of the hex keys. The exterior casing has some pitting and wear to the finish, though the “Smitty” logo and manufacturer information remain clearly legible.
• Functionality: The keys still fold out, but they may be stiff due to the internal corrosion.
Notable Features:
• Includes two sets of fold-out keys (one on each end).
• Solid metal construction typical of mid-century American-made hand tools.
• Ideal for collectors of vintage tools or for someone looking for a restoration project.
Please see all photos for a detailed look at the condition of this item. Sold as-is.












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