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PorterMax, Inc

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1/4-28 Thread Plug Spiral Tap


  • Model: AMT-120
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High Speed Steel Standard Hand Plug Tap: 1/4-28 thread with 4 Flutes. Used for mounting accelerometers. It is advisable to first use a “Plug Style“ tap to facilitate cutting the threads. Once the plug style tap has bottomed out, back off and thread using the bottom tap. F.Y.I.: more flutes provide a greater number of cutting teeth. The tougher the material, the better it is to have more chamfered threads cutting. The max is normally 4 flutes. Cheaper taps with fewer flutes and cutting teeth can result in premature dulling and breaking.

Additional Information

  • Model: AMT-120
  • Shipping Weight: 1lbs