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Union Butterfield® 6006940 1572 Straight Flute STI Tap, #10-32 Thread, 3 Flutes, 3B/H2 Class of Fit, Bottoming Chamfer, Right Hand Cutting, UNF Thread

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Features

  • Designed for use in aluminum, magnesium, and other nonferrous materials where taps of this type are most commonly used
  • Taps suitable for other materials can be furnished on request
  • STI taps are dimensionally oversize and utilize a larger tap drill size so that the thread they produce will accept a helical coil wire screw thread insert of the same nominal size and pitch
  • For a particular size and pitch the lower H-Limit number is suggested for class 2B and 3B threads, while the higher H-Limit is suggested for class 2B
  • Through or blind hole

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Description

Union Butterfield® STI Tap, Straight Flute, Series: 1572, Measurement System: Imperial, #10-32 Thread, UNF Thread Standard, 1 in Thread Length, 2-1/2 in Overall Length, 3 Flutes, Bottoming Chamfer, Right Hand Cutting Direction, Class of Fit: 3B/H2, 0.255 in Shank Diameter, #21 Tap Drill, 0.191 in Square, HSS, Bright