
AA 1
d3 di dm d1
P A B
ε
T
S
γ
A-A
Δ1
| 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 |
| ϒ1 | Rake angle |
| T | Width of land |
| S | Flute width |
| d5 | Web thickness |
| ε | Angle of spiral flute |
B
d5 B-B