51-Piece Metric Set: This tap die set handles common internal and external threading needs, making it ideal for both new thread cutting and damaged thread repair—no additional tool sets required Bearing Steel Construction: Made from premium bearing steel and heat treated at 1472℉ / 800℃, this tap and die set delivers superior hardness and wear resistance for long-lasting, high-frequency threading More Auxiliary Control Tools: This rethreading tool kit includes an adjustable wrench, T-handle tap wrench, adjustable die stock, spiral flute extractor, automatic center punch, and flat-head screwdriver for precise thread starts and improved efficiency Compatible with Multiple Metals: These taps and dies work with carbon steel, cast iron, aluminum alloys, brass, copper, and stainless steel, making them ideal for garage repairs, workshop tasks, and a wide range of applications

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