The pitch of GB coarse teeth 60 m 14 is 2.00mm, and that of GB fine teeth 60 m 14 is1.50 mm..

Pitch: The distance between two adjacent threads is measured along the spiral direction. Generally refers to the axial distance between two corresponding points on the thread pitch line between two adjacent teeth.

Common types:

(1) Pitch: the axial distance between two corresponding points on the pitch line of two adjacent teeth on a thread.

(2) Pitch in the model airplane: the distance that the propeller passes in the air at one time.

Extended data:

1. In English, the pitch is expressed by the number of teeth per inch (25.4 mm).

2. The appearance of spiral CT produced a new concept, pitch (P). For the early single-layer spiral, the definition of this is unified by all manufacturers, that is, pitch = feed distance/collimation width of tube rotating 360 degrees. The pitch concept of multi-slice spiral CT is a bit complicated, and a collimation width of multi-slice CT contains multiple adjacent images. In this way, the manufacturer's non-negotiation (or non-compromise) leads to confusion in the definition of denominator in the multi-layer spiral pitch formula: collimation width.

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