Mitutoyo 148-864 Mechanical Micrometer Heads; Accuracy: 2.00 5m ; Graduation: 0.0100in.lb; 0.01000C; 0.0100m; 0.0100kg; 0.0100N7m; 0.01000F; 0.0100IN-OZ; 0.0100oz; 0.0100ft.lb; 0.0100GPM; 0.0100in; 0.0100lb; 0.0100mm; 0.0100g ; Thimble Diameter (mm):