• Number of Flutes: 4 
• Ideal for routine maintenance, repair work and for rethreading where high accuracy and tolerance thread is not critical 
• Straight flutes are ground to provide rapid chip removal for efficient threading 
• Designed for hand threading work in a variety of materials 
• Taps produce a class 2B thread
• Plug Tap (HCS) 7/16 - 20 NF

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