5Pcs 1/8" 1/4" 3/8" 1/2" 3/4" HSS Taper Pipe Tap Metal Screw Thread Machining Tools Threading Tool

5Pcs 1/8" 1/4" 3/8" 1/2" 3/4" HSS Taper Pipe Tap Metal Screw Thread Machining Tools Threading Tool

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