SPI Electronic Outside Disc Micrometer Thin measuring faces enter narrow grooves, slots and recesses, making measuring fast and accurate. Features Include... 0-1" / 25mm Measuring Range 0.0005" / 0.001mm Resolution Disc Flange Diameter: 25/32" / 20mm Accuracy: + 0.0001" / 0.005mm Large LED display with direct in/metric conversion. Certificate of Calibration Includes fitted case
