^{Thread Consistency Issues in Russian Construction Machinery Manufacturing}

^{In Russian construction and heavy machinery manufacturing, large metric threads are widely used in critical connections. Thread consistency is essential for assembly quality and operational stability.}

^{In practice, inconsistency is caused by tool wear, cutting load fluctuation, and unstable chip evacuation. These issues become more significant in large diameter tapping.}

^{From a machining perspective, unstable cutting conditions and chip interference lead to deviations in thread formation. Tool wear further affects dimensional control during continuous production.}

^{DIN376 straight flute taps provide a solution through stable chip evacuation and gradual cutting engagement. This helps maintain balanced cutting conditions.}

^{Key parameters include M12–M33 size range, thread lengths of 8–50 mm, overall lengths of 40–180 mm, and 6H tolerance.}