戻る
A interrupted -type tap is a tap with a specification in which the thread of the complete tap thread is skipped by one pile.
| A tap in which the threads of the complete peak of the tap have been removed in one pile. | |
| Tapered taps for general use | Interwrap shape |
 |
 |
In tapered threading, very thin cuts are made with the fully tapped threaded part.
Therefore, depending on the workpiece material, one blade may not bite firmly at the part of the fully threaded part.
If one blade passes without biting, the next blade will cut two blades, creating instability in the machining load.
Its instability can damage the threaded surface or induce chipping of the tap.
Therefore, by reducing the number of piles of the fully threaded part of the tapered tap, the interrupted specification is a specification that can suppress unstable behavior by firmly biting each blade and sticking together.