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Alpha UNFHB12 1/2" x 20" UNF Bottoming HSS Tap

by Alpha
SKU: UNFHB12
Save 5% Save 5%
Original price $55.71
Original price $55.71 - Original price $55.71
Original price $55.71
Current price $52.90
$52.90 - $52.90
Current price $52.90
  • Alpha HSS Hand Taps are precision manufactured in Europe to ISO529 standards.
  • HSS 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