RedLine carbide keyway cutters can be used in a variety of applications. Our key cutters are available in solid carbide or steel shank with a carbide head, with a selection of uncoated or AlTiN coated for use in multiple materials. Our offering includes full radius, corner radius, large diameter, long reach, deep slotting and fine tooth. All RedLine key cutting tools are proudly made in the USA. Used for machining aerospace and aircraft materials, nickel alloys, stainless steel and titanium. Maintains high surface hardness at high temperatures improving tool life and allows for aggressive speeds and feeds. Used in dry machining of cast irons and carbon steel. Requires and increase in speeds of 75-100%.