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Screw thread micrometer is a high precision measuring device employed for screw thread control. This type of micrometer allows knowing the average diameter of the thread and the core diameter of the screw. It has two tailstocks: the first one is the conical tip that fits in the thread throat; the second one is the croze that adapts to the crest of the thread.
The control system of screw thread with conical tip and croze allows obtaining measurements certainly excellent in cases where operator needs centesimal reading controls.
