Milwaukee High Carbon Steel SAE Straight Plug Tap in 9/16-18 NF is engineered for durable, precise internal threading in metalworking projects. Crafted from high carbon steel and finished in black oxide, this plug tap delivers solid edge retention and dependable performance through repeated taps and tougher materials. A trusted choice for pros and serious DIYers alike, it’s designed to cut clean, accurate threads with every pass.
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Tap type and size: Straight plug tap with 9/16-18 NF threads (National Fine) for precise, strong internal threading in metal components.
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Material and finish: High carbon steel for durability and edge retention, complemented by a black oxide finish that reduces corrosion and provides smoother cutting action.
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Length and packaging: 3.25 inches in length, sold as 1 tap in carded packaging for easy storage and quick access on the job.
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Usage: Metalworking tool designed to create internal threads in holes for fastening with compatible hardware; requires a proper tap drill size and oiled cutting routine.
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What it’s ideal for: Automotive repair, fabrication, equipment maintenance, and any project needing reliable, fine-pitched internal threads for 9/16" fasteners.
How to use this tap efficiently: prepare the hole with the correct tap drill size, align the workpiece to keep the tap perpendicular, apply appropriate cutting fluid, and rotate slowly with a tap wrench to cut the full threads. Back off occasionally to break chips, then finish with a clean, deburred hole for a smooth fastener fit.
With Milwaukee, you’re choosing a tool built for precision and longevity. The high carbon steel construction and black oxide finish mean this plug tap stands up to regular use in demanding metalworking environments, delivering consistent results project after project. Pair it with the right drill size and a quality tap wrench to achieve clean, accurate 9/16-18 NF threads every time.