Spiral Flute Tap: 5/8-11, 3 Flute, Bottoming Chamfer, 3B Class of Fit, Cobalt, Oxide Finish
27.70 mm Thread Length, Right Hand Flute, Right Hand Thread, H3, Series GOtap
HSS-E substrate with black oxide surface treatment. Use in a variety of materials, including steel, stainless steel, and ductile iron. Not recommended for non-ferrous materials.