Thread forming tap cold-forms threads in through holes and blind holes without producing chips * Titanium nitride (TiN) coating for extended tool life and faster cutting speeds than with uncoated tools * Coolant-through channel with radial outlet and external grooves for improved lubricant flow * Powdered-metal steel for performance approaching that of solid carbide tools, with the toughness and shock-resistance of high-speed steel * Modified bottoming chamfer has additional length to reduce chip load, add tool life, and permit higher tapping speeds