• Set of three:  Plug, Bottoming and Taper
• 1/2''x 13 UNC
• Overall length: 3.25''
• Thread length: 1.5''
• High carbon steel
• 4 flutes
• Hardened and Ground
• Great import value - but NOT cheaply made
• See my store for other sizes, both metric and imperial (UNC, UNF)

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