Digital caliper. Standard flat gauge. Capacità© 150mm x 40mm. "0" initialised. Crossed jaws. Our calipers comply with DIN 862 and reading accuracy is guaranteed. Technical information on digital measuring options: Internal and external measurements : Clean and closed measuring nozzles. Select mm/inch reading. Set to zero and measure. Difficult-to-read measurements: Measure and zero. Close the nozzles and read the value directly on the digital dial. Measuring parts to be adjusted: Take the inside measurement, set to zero, then take the outside measurement. Read the deviation indicated on the digital dial. Depth and small diameter measurements: Place the ruler against the workpiece. Slide so that the depth rod touches the bottom of the cavity. Read the depth directly on the digital dial. Tolerance measurements : Adjust to the theoretical dimension and engage the zà©ro. Carry out the comparison check on the machined part and check the digital display. It will show exactly how far above or below the theoretical dimension it is.