Farmunion Riveter Gun Kit Blind Rivet Hand Tool Set Gutter Repair Heavy Duty,With 20 Rivetsand Wrench Included Durable all-steel construction Change rivet sizes in a snap Comfortable PVC Rubber handle to prevent slipping Four interchangeable nose pieces and wrench stores on handle Suitable for: 2.4 mm in diameter, 3.2 mm and 4.0 mm and 4.8 mm core pulling rivets.