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3-48 Tap, Modified Bottom, UNC thread, H3/H4, 3 flutes, HSS-E-PM, TiCN Coated, Form Tap

  • Item Code: 4377-2.515
  • 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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Overall Length (decimal) 1.9690
Cutting Direction FORM
Reach (decimal) 0.5000
Series 4377
Material HSS-E-PM
Number of flutes 3
Square Size (decimal) 0.1098
Diameter 3-48
Overall Length 1.969
chamfer (decimal) Modified Bottom
Shank Dia (decimal) 0.1410
Brand Guhring
Coating TiCN
H Limit H3/H4
Shank Diameter (mm) 3.5814
threadtype UNC