What indicates that the proper number of threads has been cut on a steel pipe while threading with an adjustable pipe die?

The indication that the proper number of threads has been cut on a steel pipe while using an adjustable pipe die is that two newly cut threads project beyond the die teeth. This insight is grounded in the specifics of pipe threading standards and practices.

When threading pipes, it is important to ensure that the threads are cut correctly for proper fit and function, aligning with the established dimensions for the pipe size being worked on. The projection of two newly cut threads beyond the die teeth signifies that the threads are complete and have reached the appropriate depth and profile as specified in industry standards. This projection provides a visual and physical cue that the threading process has been executed correctly.

Other options do not conclusively indicate the correct threading has been achieved. For instance, while the amount of threads cut corresponds to pipe size, it does not provide a direct measurement or confirmation of correctness during the operation. The disengagement and freedom of the cutter do not solely imply proper threading; it might indicate another operational factor. Similarly, cutting threads based on a specific number of rotations might not account for variations in pipe size or die settings effectively, making it less reliable as a measure of success.