SPI Half Base Depth Micrometers
- Half base permits measuring depths of holes and slots close to shoulders and in between obstructions. Quick reading graduations.
- Satin chrome for a no glare effect
- 0.177"/4.5 mm rod diameters have individual adjustment
- Graduations: 0.001"
- Base is 2-1/4" long
- Ratchet stop
- Certificate of calibration traceable to NIST
