1/8-27 NPT Drill and Tap Kit

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    Free Shipping Over $50Contiguous USA

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    Extended Holiday ReturnsACCEPTED UNTIL JANUARY 31ST

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    Free In-House Support

  • One Year Limited Warranty

    One Year
    Limited Warranty


GlowShift’s 1/8-27 NPT Drill and Tap Kit is the perfect kit for anyone looking to drill and tap directly into the exhaust manifold or intake manifold. The featured 1/8-27 NPT Tap is used for tapping thermocouple EGT probe and boost gauge fitting holes for gauge sensors that will deliver optimum results directly from the source. The size R high speed steel drill bit’s overall length is 4 3/4" with a 118° point that drills the perfect hole to tap into. The cobalt finish increases lubricity and chip flow and can be used in various applications.

Drill Bit Details:
  • Diameter: 0.3390"
  • Finish: Cobalt
  • Material: High Speed Steel
  • Type: Jobber Drill Bit
  • Drill Size: R
  • Flute Length: 3-7/16"
  • Number of Flutes: 2
  • Overall Length: 4-3/4"
  • Shank Size: R
  • Drill Style: Letter
  • Weight: 0.1035 lbs

Tap Details:
  • Thread Type: NPT
  • Tap Drill Size: R
  • Diameter: 1/8"
  • Finish: Bright
  • Material: High Carbon
  • Thread Diameter: 1/8"
  • Thread Size: 27
  • Type: Pipe Tap
  • Number of Flutes: 4
  • Overall Length: 2 1/4"
  • Weight: 0.0613 lbs