Pitch & Lead / Profile Types

Pitch & Lead with Multi Start Thread

Pitch

Pitch Lead

Pitch = Lead =

Axial distance from one thread point to the Pitch x Number of starts corresponding point on the next form Or the distance travelled in one rotation of the work-piece

Example for two start thread

Threading Insert Profile Types

Partial Profile

The partial profile insert does not crest or top the outer diameter of the thread profile but, can be used on multi thread pitches with the same thread angle.

Full Profile

The full form insert controls the complete thread profile by cresting/topping the form. A different insert is required for each pitch.