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Digital 3-Point Bore Micrometers
$445.00
SKU 20850
Description
Self-Centering 3-Point Bore Micrometers for accurate Measurement of Internal Diameters. Each 3-Point Bore Micrometer comes in its own fitted hard case complete with setting ring and depth extension. Ring gage certificate to NIST available upon request.
Features
- Self-aligning and self-centering
- Carbide tipped measuring contact points suitable for blind bore measurements
- Ratchet stop provides uniform measuring
- Setting ring accuracy ±.000020"
- Resolution: .00005"/0.0001mm (inch/metric conversion)
- Thimble Graduation: 0.0001"
- Easy to read electronic digital display with the following measurement functions:
- Absolute and incremental measurement
- Tolerance settings
- Preset (+ and -)
- Hold Key
- SPC data output capability (RS232C)
Each 3-Point Bore Micrometer comes in its own fitted hard case complete with setting ring and depth extension. Ring gage certificate to NIST available upon request.
Dimensions
| Model No. |
Measuring Range |
Accuracy | Extension Rod Length | Setting Ring Dia. |
| 20850 | .275 - .350"/6-8mm | .00016 | 4" | .35" |
| 20851 | .350-.425"/8-10mm | .00016 | 4" | .35" |
| 20852 | .425-.500"/10-12mm | .00016 | 4" | .5" |
| 20853 | .500-.650"/12-16mm | .00016 | 6" | .5" |
| 20854 | .650-.800/16-20mm | .00016 | 6" | .65" |
| 20855 | .800-1.000"/20-25mm | .00016 | 6" | 1.0" |
| 20856 | 1.000-1.200"/25-30mm | .00016 | 6" | 1.0" |
| 20857 | 1.200-1.600"/30-40mm | .00016 | 6" | 1.6" |
| 20858 | 1.600-2.000"/40-50mm | .0002 | 6" | 1.6" |