M3/M4/M5/M6/M8 HSS Nitride Coated Metric Spiral Hand Thread Screw Tap

Specification:  Material: HSS;  Surface treatment: Nitrogen Treatment;  Thread Diameter: 3mm, 4mm, 5mm, 6mm, 8mm.     Features:  1. Nitridation surface of the product, it's higher accuracy, and more durable;  2. Growth in the service life and cutting out the highest accuracy of the thread;  3. Spiral screw is suitable for cutting materials with high toughness, and is not suitable for cast iron scraps into fine materials;  4. Easy to drill the bottom;  5. Fine cutting and the chips will not stay.     Note:  Please note that the package includes one tap only.     Package Included:  1 x Spiral Pointed Tap