OSG Threading Tap Metric Fine A-Spiral Flute - FORM E Powder Metal Right Hand -TiCN Coated - Blind Holes DIN374 - M20 x 1The OSG Metric Fine A Spiral Flute Threading Tap is designed for precision threading in blind hole applications, ideal for machinists who demand clean, accurate threads in challenging materials. Built with FORM E geometry, a TiCN coated powder metal body, and an A Spiral flute, it delivers durable performance and efficient chip evacuation in one tool. FORM E geometry: Optimized cutting design for high precision, fine pitch metric threads in blind