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    Indianapolis, IN 46203
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M8X1.25 Tap, Bottom, metric thread, D9/D10, 5 flutes, HSS-E, TiN Coated, Form Tap

  • Item Code: 3979-8.000
  • Brand: Guhring
  • Unit Size: 1

Description

Not all threads are made by cutting. In large production runs or where great strength is required, the threads may be rolled (male) or formed (female).

In the case of the tap there are no cutting edges but instead the tap is lobed. The tap is forced into the hole and the material is deformed by the lobes into the required thread form. Formed threads have the advantage of increased strength (the material flows into shape via cold forming) along with reduced manufacturing time.

Tech Specs

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Square Size (decimal) 0.238
Diameter M8X1.25
H Limit D9/D10
Brand Guhring
Shank Diameter (mm) 8.0772
Cutting Direction FORM
Diameter (mm) 8.001
Overall Length (mm) 69.1134
Coating TiN
Material HSS-E
Reach (decimal) 1.3770
threadtype metric
chamfer (decimal) Bottom
Number of flutes 5
Overall Length (decimal) 2.7210
Series 3979