OSG Threading Tap - BSW Spiral Point HSS-E - Steam Oxide Coated - Through Hole - 1 x 8The OSG BSW Spiral Point Threading Tap is a high performance tool designed for through hole tapping in metalwork. Built for machinists, fabricators, and job shops, it delivers precise, durable British Standard Whitworth threads with efficient chip evacuation. Material: HSSE (high speed steel with cobalt) for enhanced wear resistance and heat tolerance. Coating: Steam Oxide coating to reduce wear, improve lubricity, and extend tool life in tapping