Mitutoyo 64AAA221 3-Wire Thread Holder and Wire Set, 20 TPI

Features:

• Holder and wire set for 3-wire thread measurement, designed for accurate measurement of inch threads with 20 TPI.
• Tolerance of Wires:
  • Diameter +/- .000010"
  • Roundness +/- .000010"
  • Surface finish 2 micro inches AA, lapped
  • Hardness HRC 59-64
  • Certification of accuracy included
  • Traceable to NIST
  • Meets or exceeds all ANSI and ISO specs
• Thread Per Inch 20
• Thread Measuring Wire Diameter 0.02887

Applications:

• Measure set of thread plug gages and working thread plug gages.
• Monitor the wear on working thread plug gages.
• Monitor and control pitch diameter variation during thread fabrication.
• Reduce measurement time to a fraction of the time normally taken using the traditional three wire method.
• Use in conjunction with Go/No-go thread ring gages to control thread size to the most demanding specifications.
• Determine out of roundness and taper that may exist in threaded parts.
• Applications for preplating and post plating thread measurement.

For more information, please see Data Sheet