Sandvik Coromant 8550480 Tap & Drill Sets; Minimum Tap Thread Size (Inch): 1/2-13 ; Maximum Tap Thread Size (Inch): 1/2-13 ; Maximum Drill Size (Fractional Inch): 1/2 ; Tap Type: Spiral Flute ; Tap Coating/Finish: AlCrN ; Tap Material: High Speed Ste