Spiral Flute Tap: 5/16-18, UNC, 3 Flute, Semi-Bottoming, 2B & 3B Class of Fit, Powdered Metal, Steam Oxide Finish MPN:TT97547

The OSG spiral flute tap is an essential tool for precision machining professionals working on threading applications requiring high quality and accuracy. It is commonly used by manufacturers in industries such as automotive, aerospace or medical, to produce clean and precise threads into various materials including metals, plastics or composite materials. With its 2B and 3B class of fit designation, it provides optimal threading performance for tapping high strength alloys while minimizing breaking and chipping during cutting operations. The semi-bottoming feature ensures complete threading in the first pass, resulting in a fastening application with better holding power. This versatile tap is cost-effective and reliable making it an essential piece of tooling for machinists, tool and die makers or CNC programmers.