1-3/16" Diam, 1" Shank, Diam, 3 Flutes, Straight Shank, Interchangeable Pilot Counterbore MPN:GH8816126

The Spiral Flute Tap: 5/16-18 UNC is a high-quality cutting tool designed for threading applications where superior performance and precision are paramount. This tap features three spiral flutes, allowing it to easily remove chips during the tapping process while maintaining stability within the hole. Its bottoming feature ensures accurate countersinking for flush mounting, perfect for automotive or machinery industries. The cobalt steel material delivers durability and heat resistance, making it ideal for challenging jobs requiring long tool life or operation in high temperatures. The bright/uncoated finish enables easy lubrication with standard tapping fluids while also minimizing friction and chip build-up. Overall, this tap is an essential tool for industries such as automotive, aerospace, medical equipment manufacturing, or any others requiring precise threading operations using DORMER brand taps.