Straight Flute Tap: 5/16-18 UNC, 4 Flutes, Taper, 2B/3B Class of Fit, High Speed Steel, Uncoated MPN:TT82938

Starrett's straight flute tap offers exceptional performance & longevity for creating threads in challenging materials with precision accuracy at 5/16-18 UNC thread pitch using high-speed steel taps manufactured under strict quality controls. Engineered with a four flutes design providing an efficient balance of smooth cutting action & faster thread creation on internal or external tapping applications while minimizing chip packing problems or burr formation ensuring clean and durable threads that are suitable for use across automotive, aviation, industrial sectors in a wide range of metals without compromising their integrity. Its uncoated 2B/3B class fit enhances heat-resistance properties reducing brittleness & chipping issues while allowing greater depths or blind holes cutting capability providing exceptional value for your money without compromise on performance!