2-9 Nodular, Malleable & Vermicular Cast Iron，（GGG）
Nodular, Malleable(GGG, GT)and Vermicular(GGV, GJV, GGI) Cast Iron
Straight Flute or Spiral Points for Through Holes
Form C: 2~3 chamfering
Tolerance: ISO 2-6HX
Dry Tapping by TialN coating
Straight Flute or Spiral Points for Through Holes
Form C: 2~3 chamfering
Tolerance: ISO 2-6HX
Dry Tapping by TialN coating
Best Art. No. in normal stock: DIN 371: 7270
DIN376: 7271
Other Art. No. for Best recommendation:
DIN371: Dry Tapping: 4358, Internal Coolant: B4358, B7270, Carbide: B4558
DIN376: Dry Tapping: 6308 Internal Coolant: B6308, B7271
*Please refer to BOSS DIN CATALOGUE for Specification and Technical Data*
