Wiseman Threading Tools Metric Fine HSS Hand Tap Set ISO529 - M33x1.5Wiseman Metric Fine HSS Hand Tap Set ISO529 M33x1. 5 Experience precision threading with a purpose built set designed for reliable, repeatable results in a wide range of metals. This Wiseman hand tap set uses high speed steel (HSS) thats ground for crisp thread form and durability, ready to tackle both tough and softer materials with ease. The taps are uncoated to maximize compatibility with your preferred cutting fluid, ensuring smooth chip formation