OSG Threading Tap - UNC Spiral Flute HSS-E - Steam Oxide Coated - Blind Hole - 1.1/8 x 7The OSG UNC Spiral Flute Threading Tap is a precision tool designed for professionals who need reliable, accurate threads in blind holes. Crafted from HSS E cobalt and finished with a durable steam oxide coating, it delivers strong performance in demanding metalworking tasks. Size & Thread: 1 1 8" diameter with 7 UNC threads per inch, optimized for blind hole applications. Material: HSSE (high speed steel with cobalt) for enhanced hardness and heat