Page 377 - ISCAR(HOLE_MAKING_CATALOG_65)
P. 377
USER GUIDE
TAPS
Tap Nomenclature (Regrinding)
A A 1
d3 di dm d1
A-A
P
A
B γ
S
Δ 1
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
Δ 1 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
