YG-1 O1 series super HSS spiral pointed tap for steel and stainless steels uptp 35HRc. High-speed steel tools are good for most general purpose applications, offering a combination of hardness and toughness for wear resistance. Hardslick coated. Round shanks allow use with a wide variety of toolholding systems. Straight flute tools allow chips to collect in the flutes as they cut and are well suited for most applications in shallow cuts. Right-hand cut tools have a cutting action that engages when they are run in a clockwise direction. Applications: Good for low carbon/free machining carbon steel, pure aluminum/aluminum alloys, pure and alloyed copper, free machining brass/alloyed brass, zine, magnesium. Excellent for medium to high carbon steel, free machining stainless steel.