Overview Reviews Product Description HSSE - for toughness and increased wear resistance TiAlN coated - increases wear resistance, improves chip flow and reduces chip welding Designed to produce a 6H class of fit ANSI shank / ISO length Spiral point forces the chips ahead of the tap - designed for through hole applications Designed for tough materials such as stainless steel and tool steel up to 38Rc Clarkson Osborn Catalog Product Videos Custom Field Size M30 - 3.50 Flute length 48mm Overall length 138mm Package quantity/sold as each 1 Product Reviews Write a Review Write a Review × Clarkson-Osborn M30 - 3.50 HSSE Blue Ring Spiral Point Tap CT55300 Rating * Select Rating 1 star (worst) 2 stars 3 stars (average) 4 stars 5 stars (best) Name Review Subject * Comments *