The Wiseman Threading Tools Metric Fine HSS Hand Tap Set ISO529 - M12x1.25 is a precision internal-threading solution built for reliable, repeatable results in metalworking projects. Crafted from high-speed steel and ground for exactness, these taps are uncoated to pair seamlessly with cutting fluids and coolants, helping you maintain clean cuts and minimize heat buildup during tapping sessions.

• ISO 529 compliant metric fine thread: M12 x 1.25 with a right-hand thread, ensuring compatibility with standard nuts and bolts and dependable thread engagement.
• High-speed steel, ground finish for toughness and accuracy; uncoated design improves compatibility with lubricants and debris control for consistent performance.
• Three-lead design: taper, second, and bottom relief in each tap to progressively cut the thread, reduce tool deflection, and produce accurate threads from the first pass through final depth.
• General purpose tapping set suited for a wide range of machinable metals common in workshops, including steel, aluminum, brass, and alloys.
• For DIY and professional use: ideal for repairing damaged threads, fabricating custom parts, or prototyping assemblies where precise internal threads are crucial.

Usage tips: align the tap with the hole, apply a light lubricant, and turn slowly with a tap wrench or T-handle. Back off periodically to break chips and re-lubricate. Begin with the taper lead to initiate the cut, then progress through the second and bottom leads for full-depth threading. Ensure you use the correct drilling size for M12x1.25 and maintain a steady, perpendicular approach to preserve thread quality.

Care and maintenance: after tapping, clean away chips, wipe dry, and apply a light protective coating to prevent corrosion. Store the set in a dry, organized place to keep edges sharp and ready for your next project.