Overview Reviews Product Description HSS Designed to produce a 6H class of fit For general purpose applications Helix angle of 30° - 35° degrees depending on size Spiral flute taps are designed for blind hole applications and lift chips out of the hole Suitable for various steels (up to 28Rc) and some 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 M7.0 - 1.00 Flute length 19mm Overall length 66mm Package quantity/sold as each 1 Product Reviews Write a Review Write a Review × Clarkson-Osborn M7.0 - 1.00 HSS Blue Merlin® Spiral Flute Machine Tap CT76070 Rating * Select Rating 1 star (worst) 2 stars 3 stars (average) 4 stars 5 stars (best) Name Review Subject * Comments *