Drag the drum/ratchet of the caliper left or right to make gross adjustments to the spread of the jaws of the caliper.

DOWN/UP ARROW KEYS

• Use the down and up arrow keys to make fine adjustments to the spread of the jaws of the caliper [ 0.010 mm ].

LEFT/RIGHT ARROW KEYS

• Use the left and right arrow keys to make medium adjustments to the spread of the jaws of the caliper [ 0.050 mm ].
• Use the shift-left and shift-right arrow keys to make medium adjustments to the spread of the jaws of the caliper [ 0.100 mm ].
• Use the control-left and control-right arrow keys to make medium adjustments to the spread of the jaws of the caliper [ 1.000 mm ].