0.5 x Pitch
equal to pitch
Pitch / 0.5
2 x Pitch
100
127
140
135
Diameters decreases helix angle increases
Diameters decreases helix angle decreases
No change in helix angle if diameter increases
No change in helix angle diameter decreases
Lead decreases helix angle increases
Lead decreases helix angle decreases
Helix angle have no change when lead decreases
Helix angle have no change when lead increases