Spiral flute tap design pulls chips back from the tip of the tool and out of the hole to prevent clogging * Spiral flutes for creating threads in blind holes * Available in UNC (Unified Coarse) or UNF (Unified Fine) right-hand thread options for different applications * Uncoated (bright) tools have no additional surface treatment or coating, suitable for general-purpose applications * Round shank with square end helps to minimize rotation in the tool holder