Каталог Iscar высокоточные развертки и метчики 2022 - страница 65

TAPS USER GUIDE Tap Nomenclature (Regrinding) A J1 E ' d3 di dm d1 ' A-A P D A B γ S Δ1 T ε d5 B B-B d1 Major diameter dm Flank diameter di Minor diameter d3 Chamfer diameter P Pitch a Flank angle ß Chamfer angle j Gun nose angle ϒ Gun nose front rake angle Δ Chamfer relief Δ1 Pitch diameter relief on the land ϒ1 Rake angle T Width of land S Flute width d5 Web thickness ε Angle of spiral flute 375