WIDIA GTD Spiral Flute Tap: M33x3.5 Thread Size, 35.00 mm Thread Lg, 250.00 mm Overall Lg, 5 Flutes, GT315017 (CR00833WTA26)
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These taps are designed for tapping steel. They have a TiCN coating that protects them from wear and is harder and more wear-resistant than a TiN coating. Coolant-through taps have holes that allow coolant to flow to their tip to reduce heat and friction during threading tasks.