The Exopro-CC-SUS spiral tap series from OSG Tap & Die is designed for tapping stainless steel, as well as carbon and alloy steels. Constructed of vanadium high speed steel, the tap features a variable lead-flute design with chip control for stable chip evacuation. The series is said to provide increased consistency, improved reliability and extended tool life even with water-soluble coolant. The taps are available in sizes ranging from No. 2 to 1" and M2 to M4.