OSG Threading Tap - BSF Spiral Point HSS-E - Steam Oxide Coated - Through Hole - 3/4 x 12The OSG BSF Spiral Point Threading Tap is a precision tool designed for through hole BSF threading work. It combines HSS E cobalt performance with a durable steam oxide finish to deliver reliable, long lasting results in demanding machining tasks. Thread Type: BSF (British Standard Fine) spiral point geometry for efficient, through hole tapping and clean thread formation. Material & Coating: HSS E (high speed steel with cobalt) with a Steam Oxide