Manufactured by Foster and stamped with "Made in USA”, set includes 4 threading chasers, likely used in a die head for metalworking. Typically used together to cut threads on metal pipes or rods. Comes in a vintage box labeled P & N Chaser Dies. 
 
Depending on the location, item, and weight, interstate shipping can be arranged and calculated prior to purchase.
 
Email at wakimantiques@hotmail.com
10 Nicholson St, Coburg VIC 3058
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Wakim Antiques 
BSB: 062692
ACC: 41129499