YG-1 H7 series premium HSS spiral flute tap for steels upto 45HRc. High-speed steel tools are good for most general purpose applications, offering a combination of hardness and toughness for wear resistance. Titanium carbonitride coatings are harder and more wear-resistant than TiN for improved tool life and faster cutting speeds. Round shanks allow use with a wide variety of toolholding systems. When run in a counterclockwise direction (right-hand cut) spiral fluted tools evacuate chips up and out of the cut to reduce clogging. 0.433-inches thread length. Applications: Good for steel castings and forgings/heat-treatable alloy steels, heat and corrosion-resistant stainless steel/valve stainless steel, 71/ and 625 inco/waspaloy/hastelloy/invar/monel/incoloy, 718 inconel/A286, titanium. Excellent for alloyed tool steels/mold steels, stainless steel castings/precipitation hardening stainless steel, bronze.