Only precise alignment of the two dies produces very good threads. Even a tiny misalignment can quickly cause thread laps or skidding blanks. Each effects weaken the thread profile, and they are considered significant high quality defects. There is only one appropriate position in flat-die thread rolling procedure where the two dies must be set against every other. Discovering this setting is a demanding activity for the operator. The fixed die block is generally flexible enough to be adjusted 3 dimensionally to locate the correct position with the moving die. However, this setting flexibility gives a higher likelihood of error without the assistance of appropriate measuring instruments. Though thread roll method monitors are offered, they normally use only one sensor measuring radial roll stress to detect bad rolls for the duration of production. They have supplied only restricted assistance with optimizing thread roller die alignment.