KOOPOOL 14" Rivet Nut Tool Kit, Heavy-Duty Rivnut/Nutsert Tool with 7 Mandrels (M6, M8, M10, 1/4"-20×2, 5/16"-18, 3/8"-16) & 70 Rivet Nuts, Rugged Rivnut Tool Kit with Carrying Case (14")

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• 【Full Kit with 7 Mandrels & 70 Rivet Nuts】 This complete rivnut tool kit includes M6, M8, M10, 1/4"-20 (×2), 5/16"-18, and 3/8"-16 mandrels, along with 70 matching rivet nuts — 10 per size. All components are housed in a rugged blow-molded case, keeping your nutsert tool and accessories neatly organized and always ready.
• 【Quick-Swap Mandrels in 5 Seconds】 No tools, no disassembly — just press down the sleeve, unscrew the old mandrel, and screw in a new one. This rivnut tool features a unique quick-change system that lets you switch mandrels in seconds. Unlike traditional nutsert tools, there's no need to take the tool apart — making your work faster and smoother.
• 【Auto-Locking Mandrel for Safer Work】 Once installed, the sleeve automatically springs back to lock the mandrel in place — no wobbling or loosening during use. This upgraded feature makes our rivet nut tool more secure and reliable than ever, especially in high-torque applications.
• 【How to Remove a Mandrel】 First, press the sleeve downward, then turn the mandrel to the right (unscrew). If you try to unscrew without pressing the sleeve, the mandrel will not come out because it is locked by the sleeve. This does not mean the mandrel is stuck.
• 【Built for Auto, Garage, DIY & More】 Compact yet powerful, this rivet nut tool kit works great in tight spaces and tough jobs. Whether you're repairing vehicles, installing metal brackets, working with plastic or furniture, this rivnut tool delivers strong grip, clean installs, and professional results every time.
• 【Heavy-Duty Build, Professional Feel】 Crafted from high-strength carbon steel with a black oxide finish, this rivet nut tool kit resists corrosion and handles demanding jobs with ease. The heat-treated CR-V steel mandrels provide lasting durability, making this a dependable nut rivet tool kit for professionals and DIYers alike.
• 【2-Year Warranty & Friendly Customer Support】 Buy with confidence—our rivnut tool kit is backed by a 2-year warranty and responsive customer service. If you encounter any issues or have questions, we’re here to help. Your satisfaction is our top priority.