Mandrel/Nosepiece Set, Compatible Tool Type Thread Setting Tool, Compatible Insert Type Rivet Nuts, Compatible Internal Thread Size M10, M5, M6, M8, Compatible External Thread Size M10, M5, M6, M8, Material Steel, Overall Length 4 in, Product Type Mandrel and Nosepiece Set, Compatible with Grainger Part Number 4BB23, Compatible with Manufacturer Model Number 4BB23