DOUBLE GEAR: hole ш 9 mm ш 80x14 mm - 37 slanting teeth ш 37x14.5 mm - 16 straight teeth overall height 29 mm MIDDLE GEAR: hole ш 16 mm ш 74x11 mm - 35 straight teeth key 5x2.5 mm SMALL GEAR: hole ш 13 mm ш 30.5x18 mm - 12 slanting teeth for MEAT MINCER model C20