OSG Threading Tap Metric Fine A-Spiral Flute - Powder Metal Right Hand -TiCN Coated - Blind Holes DIN374 - M18 x 1.5The OSG Metric Fine A Spiral Flute Threading Tap is engineered for precise, high quality threading in metric blind holes. Ideal for professional machinists, fabricators, and maintenance technicians, it delivers reliable performance in tight cavities with a focus on durability and accuracy. Threading type: Metric fine thread, M18 x 1. 5, right hand orientation for standard assembly needs ASpiral flute design: Optimized for efficient chip evacuation in