OSG Threading Tap - Metric Spiral Point HSS-E - Steam Oxide Coated - Through Hole - M22 x 2.5Engineered for precision through hole tapping, the OSG Metric Spiral Point Threading Tap delivers consistent M22 x 2. 5 threads with durability and efficiency. It's ideal for professional machinists and high volume workshops seeking repeatable, reliable threading results. Size and thread: M22 x 2. 5 through hole metric spiral point threading tap for accurate internal threads in metal components. Material: HSS E (high speed steel with cobalt) for