Overview Reviews Product Description HSS Designed to produce a 6H class of fit Spiral point forces the chips ahead of the tap - designed for through hole applications Suitable for various steels (up to 32Rc) and stainless steel Ferrous oxide surface treatment increases wear resistance, improves chip flow and reduces chip welding The ferrous oxide surface treatment also enables the tap to absorb the lubricant / cutting fluid Clarkson Osborn Catalog Product Videos Custom Field Size M18.0 - 1.50 Flute length 37mm Overall length 112mm Package quantity/sold as each 1 Product Reviews Write a Review Write a Review × Clarkson-Osborn M18.0 - 1.50 HSS Blue Wizard® Spiral Point Machine Tap CT71680 Rating * Select Rating 1 star (worst) 2 stars 3 stars (average) 4 stars 5 stars (best) Name Review Subject * Comments *