Hand threading tap with straight flutes cuts threads in through holes and blind holes * ANSI standard 8-pitch threads for tapping large-diameter holes, including those with high-pressure requirements * Available in UNC (Unified Coarse) or UNS (Unified Special) right-hand thread options for different applications * High-speed steel is compatible with a variety of materials * Uncoated (bright) tools have no additional surface treatment or coating, for use on a broad range of materials