Wiseman Threading Tools Metric Fine HSS Hand Tap Set ISO529 - M52x3When you need clean, accurate metric threads on large diameter workpieces, the Wiseman Threading Tools Metric Fine HSS Hand Tap Set ISO529 M52x3 delivers dependable results. Crafted from high speed steel and ground for crisp flute geometry, these taps stay sharp through repeat use, providing consistent cutting action across the full thread depth. Key features that set this set apart: Material and finish: High speed steel, ground for precise thread