Hand Tool, Tool Type Double Ratchet Hand Tool, Compatible Thread Size M10, M5, M6, M8, Compatible Rivet Nut Material Steel, Mandrel Sizes Included M10, M5, M6, M8, Material Steel, Overall Length 8 11/32 in, System of Measurement Inch, Compatible Insert Type Rivet Nuts, Includes 1/4 In.-20 Insert, 10-32 Insert, 3/8 In.-16 Insert, 5/16 In.-18, Power Source Manual