H.D. Chasen Company
 
Thread Tap 3" Diameter - 6-1/2" Diameter
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Thread Tap 3-4 NC 
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Thread Tap 3-8 NS 
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Thread Tap 3-12 NS 
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Thread Tap 3-16 NS 
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Thread Tap 3-1/8-4 
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Thread Tap 3-1/8-8 
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Thread Tap 3-1/8-12 NS 
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Thread Tap 3-3/16-12 
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Thread Tap 3-1/4-4 
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Thread Tap 3-1/4-5 
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Thread Tap 3-1/4-8 NS 
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Thread Tap 3-1/4-12 NS 
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Thread Tap 3-3/8-8 
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Thread Tap 3-3/8-12 
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Thread Tap 3-1/2-4 NC 
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Thread Tap 3-1/2-8 NS 
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Thread Tap 3-1/2-12 NS 
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Thread Tap 3-5/8-8 
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Thread Tap 3-5/8-12 
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Thread Tap 3-3/4-4 NC 
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Thread Tap 3-3/4-8 NS 
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Thread Tap 3-3/4-12 NS 
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Thread Tap 3-7/8-4 
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Fractional Thread Tap 3-7/8-8 
 
   
     
  
 
  
 
  
 
  
 
  
 
  
 
  
 
  
 
  
 
  
 
  
 
  
 
  
 
  
 
  
 
  
 
  
 
  
 
  
 
  
 
  
 
  
 
  
