Flexible Cylinder Hone: 4.8 mm Max Bore Dia, 180 Grit, Aluminum Oxide MPN:BC316180AO

The spiral flute tap is a premium tool ideal for both professionals and experts handling critical tasks such as thread cutting on medium to high-strength materials like stainless steel, cast iron, aluminum alloys, or steel with precision requirements. Featuring a UNC 5/16-18 threads per inch (tpi) count and three flutes configuration for maximum chip removal and superior balance during usage, it ensures quality finishes without breaking or damaging delicate components while tapping holes manually. Its modified bottoming style eliminates galling by reducing friction at the starting thread's bottom while 3B Class of fit adds strength to the tapped hole, making this tool ideal for industries such as aerospace, automotive or medical sectors where accuracy and safety are paramount. Manufactured with powdered metal and oxide coated, it is durable enough for heavy usage while remaining corrosion resistant ensuring reliable performance in different operating environments.