Wiseman Threading Tools Metric HSS Hand Tap Set ISO529 - M39x4Wiseman Threading Tools Metric HSS Hand Tap Set ISO529 M39x4 is a precision solution for creating and repairing metric threads with confidence. Crafted from high speed steel and ground for accuracy, these taps deliver clean, consistent threads in a variety of materials, making them an indispensable part of any metalworking or fabrication toolkit. Designed to ISO 529 specifications, this set guarantees the correct thread form, pitch, and crest for