Straight Flute Tap: 1/4-20 UNC, 4 Flutes, Bottoming, High Speed Steel, Bright/Uncoated MPN:1110200

The high-speed steel construction provides great durability when tapping steel, cast iron or brass while keeping a sharp edge cutting threads accurately on workpieces with 1/4-20 UNC thread size as per standards using HSS straight flute bottoming tap with four flutes to reduce friction as the chips exit smoothly. The bright and uncoated finish provides excellent visibility in indicating whether resharpening is necessary while ensuring consistency upon re use of this bottoming tap maintaining its edge's sharpness when thread cutting, popular among automotive mechanics for precise bolt head seat patterns with an excellent thread form quality that exceeds expectations. It's ideal when performing repetitive drilling tasks in workshops or machining centers for accurate boring operations where bottoming taps create a countersink preventing stripping upon final tightening hence enhancing smooth operation preventing damaged components while improving safety measures.