Setting Tool, Tool Type Thread Setting Tool, Compatible Thread Size 1/4 In.-20, M10, 3/8 In.-16, 5/16 In.-18, M6, M8, Compatible Rivet Nut Body Type Bulbed, Hex, Round, Compatible Rivet Nut Material Aluminum, Steel, Mandrel Sizes Included 1/4 In.-20, Material Aluminum Alloy, Overall Length 18 in, System of Measurement Inch/Metric, Compatible Insert Type Insert Nuts, Includes 1/4 In.-20 Mandrel, 1/4 In.-20 Nosepiece, Service Wrench, Small Rule, Nosepiece Sizes Included 1/4 In.-20