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