- Dimensions: 50 mm W
- Display Type: Non-Digital
- Spindle Diameter: 4 mm
- Series: 137
- Type: Extension Rod Metric
- Measuring Range: 50 to 63 mm
- Accuracy: +/-(3+n+L/50) um
- Graduations: 0.01 mm
- Item Features
- Wide range of ID measurements by combining extension rods (pipes) and anvils with the micrometer head