SPI Hole-Mikes Three Point Internal Micrometers
- Three point internal micrometer for precise direct measurement of bore diameters
- Self aligning and self centering
- Carbide measuring anvils
- Suitable to measure to within 0.050" of bottom of blind hole, up to 4" capacity
- Feelers taper toward the back for positive reading of the front edge
- Ratchet stop provides uniform measuring pressure and assures highest reading accuracy
- In lieu of Setting Rings, Setting Frames are provided for diameter ranges above 7" dia.
- All sets come with Extension, Setting Rings And Spanners In Wooden Case
| Hole-Mike accuracy:
| Setting Ring accuracy:
|
Setting Rings:
- 10-708-6 - Setting Ring - Size 0.175"
- 10-709-4 - Setting Ring - Size 0.225"
- 10-718-5 - Setting Ring - Size 0.350"
- 10-719-3 - Setting Ring - Size 0.500"
- 10-728-4 - Setting Ring - Size 0.650"
- 10-738-3 - Setting Ring - Size 1.000"
- 10-739-1 - Setting Ring - Size 1.400"
Click to see Master Setting Ring Gages
