Proster Rivet Nut Tool 14" Heavy Duty Hand Rivet Nut Gun with 6pcs Metric Mandrels 150 PCS M3 M4 M5 M6 M8 M10 Nut Riveter Nut Thread Setter Kit with Storage Box Green14" Rivet Nut Tool Kit 14 Inch Green Rivet Nut Gun with Double Compound Hinges Maximizing Leverage. Perfect for Working in Hard to Reach Areas 6 Mandrels + 150 PCS Nuts Comes With 6 Interchangeable Mandrels (Metric M10, M8, M6, M5M4M3) and 150pcs Rivet Nuts. A Variety Of Sizes And Nuts For You To Replace, No Need To Buy Extra Nuts, Save More Money Storage Box Come With A Carrying Case, Easy to Store and Carry High Quality Made of High Strength Alloy