a rivet tool capable of measuring size of blind rivet has a body and multiple interchangeable nosepieces . the body further has multiple rivet body measuring holes formed through the body . diameters of the rivet body measuring holes match rivet bodies of corresponding blind rivets . accordingly , the rivet tool of the present invention employs the rivet body measuring holes to measure a size of a rivet body of a blind rivet to rapidly , conveniently and correctly obtain a size of a rivet body of a blind rivet and further to correctly choose a nosepiece with a matching size .