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When you purchase more than 100 items, please send us a mail. We will give you the cheapest price! Factory direct sales, seeking strength partners!Product Name: CAIDU 5pcs HSS 6542 Titanium Coated Spiral Flute Metric Taps Set M3 M4 M5 M6 M8 ✔ High hardness, fast cutting, wear high temperature. ✔ Spiral groove is conducive to remove crumbs, not easily broken tap. ✔ Tap the crumbs into a spiral up chip evacuation, it is more suitable for the processing of blind holes and sticky materials processing. ✔ Applicable Workpiece: tensile strength 750N / mm 2 or less the low-carbon steel, copper, aluminum, hardwood, plastic, etc. ✔ Specifications: ✭ Material: HSS6542 ✭ Surface treatment: Ti ✭ Type Size: ✭ M3: 3mm*0.5 L:48mm ✭ M4: 4mm*0.7 L:54mm ✭ M5: 5mm*0.8 L:58mm ✭ M6: 6mm*1 L:66mm ✭ M8: 8mm*1.25 L:71mm ✔ Package Included: 5 x Titanium screw tap