Extension Tap: 5/16-18, 3 Flutes, H3, Bright/Uncoated, High Speed Steel, Spiral Flute MPN:1298400

Spiral flute extension tap for #16 threads provides increased chip evacuation and longer tool life through the use of three cutting lips reducing friction, resharpening frequency and downtime needed while thread cutting. Made from high-speed steel its durability allows it to handle materials such as carbon or alloy steel offering consistent threads with sharp edges ensuring secure mating even in repetitive machining scenarios. The straight shank design fits onto standard ISO spindles on milling machines and lathes allowing for precision cutting ideal for industries like manufacturing plants, automotive shops, aerospace companies requiring accurate fasteners for assemblies or disassemblies where quality is essential. Its price point makes it an economical choice in maintaining productivity while providing reliable performance.