Straight Flute Tap: 5/16-24 UNF, 4 Flutes, Taper, High Speed Steel, Gold/Oxide Coated MPN:BDNA-20773

Spiral Flute Tap: #4-40 is designed for precision threads without sacrificing efficiency in light to medium-duty metalworking applications such as general machining and maintenance work. With its 3 flutes providing efficient chip evacuation, these taps offer an impressive cutting speed yet are durable enough to maintain accuracy throughout their use thanks to the incorporation of cobalt as a component in their composition for improved wear resistance. Furthermore, being manufactured with Modified Bottoming design prevents damage on the bottoms side, ensuring smooth, burr-free threads without causing undue stress upon entry and exit from materials being tapped making them ideal tools within professional machinists' toolsets or hobbyist shops looking for reliable threading results every time.