Spiral Flute Tap: UNC, 3 Flute, Semi-Bottoming, 2B/3B Class of Fit, High-Speed Steel, ZrN Finish MPN:TT89137

The spiral flute tap is an essential tool utilized in the fastening industry to create threaded holes in various materials by removing metal chips simultaneously with cutting action improving chip removal, feed rate and lubricity for faster, smoother machining operations. The high-speed steel construction delivers high strength, durability and resistance to heat while the spiral flute design provides efficient chip evacuation reducing pressure build up or heat generation ensuring longer tool life. The 3 flutes provide excellent stability and control during operation while the UNC threading system is suitable for numerous applications from fastening into softer metals like aluminum, brass to hardened steel with minimal distortion. With a Semi-bottoming design offering extra bottoming capabilities on harder materials, the ZrN finish provides extra lubrication and reduced friction on non-ferrous metals reducing galling or seizing making it indispensable in automotive, construction, marine or general machining applications.