KOOPOOL 14" Rivet Nut Tool Kit — 7 Mandrels, 70 Rivet Nuts, Quick‑Swap System & Carry Case

The KOOPOOL 14" Rivet Nut Tool Kit is a compact, heavy‑duty rivnut installer with seven quick‑change mandrels and 70 matching rivet nuts for fast, reliable threaded inserts.

Keep a professional-grade rivet nut solution in your toolbox: this 14‑inch hand tool from KOOPOOL combines a long, ergonomic handle with hardened mandrels and a full complement of rivet nuts so you can add strong, reusable threads to thin metals, plastics, and composites without welding. It ships in a blow‑molded case that organizes components and protects the tool during transport and storage.

How does the quick‑swap mandrel system save me time?

Changing mandrels takes seconds thanks to a spring‑loaded sleeve that releases the current mandrel for removal and accepts a new one without disassembly or extra tools. That means fewer interruptions when switching sizes across a job, and less time fumbling with tiny parts.

• Press the sleeve, unscrew the old mandrel, screw in the new one.
• No thread locker or puller required to change sizes.
• Designed for rapid transitions between M6, M8, M10, 1/4"-20, 5/16"-18, and 3/8"-16.

What makes the mandrels secure while installing rivet nuts?

KOOPOOL’s mandrels feature an auto‑locking sleeve that snaps back into place, keeping the mandrel firmly seated during high‑torque pulls. This reduces wobble and loosening, delivering cleaner set profiles and more consistent grab in thin materials.

• Spring‑return sleeve locks mandrel for steady operation.
• Heat‑treated CR‑V mandrels resist wear under heavy use.
• Black‑oxide finish and carbon steel construction increase corrosion resistance.

What sizes are included and where can I use them?

The kit supplies seven mandrels and 70 rivet nuts (ten of each size) to cover common automotive, fabrication, and DIY threading needs. The included sizes fit a broad range of fasteners so you can retrofit threads in panels, brackets, or plastic housings without changing tools.

• Mandrel set: M6, M8, M10, 1/4"‑20 (×2), 5/16"‑18, 3/8"‑16.
• 70 rivet nuts: 10 per size for repeated installs.
• Useful for cars, motorcycles, metal furniture, panels, and plastics.

How durable is the tool and what support comes with it?

The installer is built from high‑strength carbon steel with a protective black‑oxide coating, and mandrels are heat‑treated for long life under torque. KOOPOOL backs the kit with a two‑year warranty and customer support for parts or questions.

• Heat‑treated CR‑V mandrels minimize rounding and failure.
• Blow‑molded case protects components and simplifies storage.
• Two‑year warranty and responsive KOOPOOL support included.

Who is this for: The KOOPOOL 14" Rivet Nut Tool Kit is ideal for mechanics, metal fabricators, home DIYers, and restoration hobbyists who need a portable, reliable method to add strong, repeatable threads to thin materials. If you work on vehicles, build or repair metal furniture, or often retrofit parts that require secure fastening without welding, this kit gives you the sizes, durability, and quick‑change convenience to finish jobs faster and with professional results.