Product Description: -The Heavy Duty 110 Piece Nut Riveter Set includes a hand operated Twin Handle Nut Riveter manufactured from a heavy duty steel construction with moulded grips for two handed operation. The Nut Riveter Set includes seven different sized mandrels including M3, M4, M5, M6, M8, M10 and M12, mandrel spanner for attaching sized mandrel to riveter and x 100 Zinc Coated Steel Rivet Nut Inserts, all housed within a blow mould case. This product is a cost effective fastening system ideal for a large array of applications including Automotive, Metal Fabrication, Appliances, Food equipment, Industrial machinery, Farm equipment, Electronics, Transportation, 4WD off-road applications, Marine, and many more. Features: -Advanced Material: This rivet nut gun adopts chrome-molybdenum steel mandrels, 3mm high-strength handles makes the rivet nut gun more sturdy and durable. -Labor Saving Structure: This product maximizes leverage and saves you 40 percent of your effort. Ergonomic handles with double compound hinges to improve durability. -Flexible Design: The quick-change head design allows for easy changing of mandrels and nose pieces by hand, no additional tools needed. -Rich Accessories: This pop rivet gun comes with 7 interchangeable mandrels sets and 100pcs rivets nuts in various sizes, making sure to meet all your needs. -Wide Applications and Easy to Carry: Ideal when there is limited access to the rear of a panel, great for sheet metal fabrication. The box is easy to store and carry.