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Alpha CUNFCB12 1/2" x 20" UNF Bottoming Chrome Tap

by Alpha
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Estimated Dispatch Time: 3-10 days

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  • Alpha Carbon Hand Taps are precision manufactured in Europe to ISO529 standards.
  • Carbon Hand Taps are general purpose taps suitable for hand and machine operation, and are suitable for production use.
  • 2N Tolerance for optimum thread fit that balances fastener performance, manufacturing, economy and convenience.
  • Suitable for use in Steel, Aluminium, Copper, Brass etc.
  • Always use lubricant. Click here for our range.
  • BOTTOMING taps have a lead of two threads and are used when tapping blind holes. Usually preceded by a taper or intermediate tap. Alpha bottoming taps can be identified by their plain shaft, they have no rings on the shaft near the driving square.

    • Diameter: 1/2mm
    • Pitch: 20mm
    • Overall length: 70mm
    • Shaft Diameter: 9mm
    • Drive Square: 7mm
    • Tapping Drill Size: 11.50mm

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