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POWERCOIL STI Taps Straight Flute Taps UNC

  • HSS Hand and Machine 4H5H Tolerance Screw Thread Insert (STI) Taper Tap.
  • PowerCoil wire thread inserts are installed into oversize tapped holes.
  • Only PowerCoil STI (Screw Thread Insert) Taps are suitable for use with PowerCoil Wire Thread Inserts.
  • STI Taps have a larger diameter, than standard taps, but the same pitch to accommodate the wire thread insert.
  • Once the insert is installed in the tapped hole it creates the desired internal thread tolerance for the installed bolt or stud.
  • Bottoming Taps have a lead of two threads and are used to ensure minimum thread run-out when tapping to the bottom of a blind hole.
  • Taper Taps have a lead of eight threads and are used as a starting tap in difficult or high precision holes.

In Stock
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Additional information

Size

2G x 56, 3G x 48, 4G x 40, 5G x 40, 6G x 32, 8G x 32, 10G x 24, 12G x 24, 1/4" x 20, 5/16" x 18, 3/8" x 16, 7/16" x 14, 1/2" x 13, 9/16" x 12, 5/8" x 11, 3/4" x 10, 7/8" x 9, 1" x 8, 1.1/8" x 7, 1.1/4" x 7, 1.3/8" x 6, 1.1/2" x 6
Tap

Taper, Intermediate, Bottoming

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