Wiseman Threading Tools Spiral Point Machine Nut Metric HSS Tap - M20x2.5Meet the Wiseman Threading Tools Spiral Point Machine Nut Metric HSS Tap in the precise M20x2. 5 configuration. Designed for reliable, high precision internal threading, this uncoated high speed steel ground tap is built to deliver consistent results in a range of metals when used in machine tapping applications. With BS 949 dimensions, it fits standard tooling setups and ensures compatibility with common chucks, holders, and tapping adapters. Key