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Tap, #4-40, Spiral Point

Tap, #4-40, Spiral Point
Part Number: 6169
Weight: 0.01 lb

Price: $3.95

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  • HSS spiral point plug style tap
  • #4-40 threading (coarse)
  • Two flute
  • H2 thread allowance
  • Ground from solid HSS / ground threads


Spiral point plug style tap, ground from solid high speed steel (HSS) with ground thread.

Two flute coarse thread, with an H2 thread allowance (plus 0.0005 to plus 0.0010).

Spiral point style plug taps have the same general tap dimensions as straight flute taps however they have the first few threads cut at an angle which enhances the removal of chips from the cutting surface. This design makes spiral point taps ideal for production tapping of through holes.

The flutes on a spiral point tap are more shallow than those of a conventional tap resulting in more surface area for cutting, making them stronger thereby allowing for higher cutting speeds and less power required for the tap to travel.

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Need help choosing the correct tap? Try this quick guide: Choosing the Correct Tap.


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