444Pcs Rivet Nut Tool Kit, Rivnut Tool Kit with 7 SAE and Metric Mandrels (10-24, 1/4-20, M3, M4, M5, M6, M8) and Rivet nut Assortment Kit with Rugged Carrying Case(Aluminum Alloy)

Package Includes: The Rivet Nut Tool Kit comes with 1 x Rivet Nut Tool, 7 interchangeable mandrels (10-24, 1/4-20, M3, M4, M5, M6, M8) and 444Pcs rivet nuts to meet your daily work needs | Material: Rivet nut tools are made of chrome vanadium alloy steel for corrosion and deformation resistance, rivet nuts are made of aluminum alloy, easy to rust and easy to install | Easy to use: Simply drill holes in the workpiece, assemble the appropriate rivet nut to the tool, insert it into the hole and squeeze to finish | Convenient storage: Rivet nuts are stored in an upgraded toolbox, clearly labeled for quick access to the right product, easy to use and carry, and the products can be reused as other kits when used up | Application: Rivet nut tool are widely used in automobile, aviation, railroad, refrigeration, switch, instrument, furniture, elevator, decoration and many other manufacturing fields