The Hertel Spiral Point Tap is precision-engineered for creating M1.6x0.35 metric coarse threads with exceptional accuracy. Featuring 2 flutes and a plug chamfer design, this high-speed steel tap comes with a durable TiN coating that enhances performance and extends tool life. The right-hand thread configuration has a 5/16" thread length and 1-5/8" overall length, making it suitable for a variety of threading applications. With a 0.141" shank diameter and D3 designation, this tap meets the 6H class of fit standards for precise threading results. The spiral point design efficiently pushes chips forward, making it ideal for through-hole applications. This professional-grade threading tool delivers consistent, clean cuts for manufacturing, maintenance, and repair operations where metric threading is required.