Precise Electronic 3 Point Internal Micrometer, 1.575-1.968"/40-50mm - 303-258
Brand: Precise| Range inch | 1.575 - 1.968" |
| Range mm | 40 - 50 mm |
| Accuracy | ±0.0002" / 0.005 mm |
| Extension Rods | 5.905" |
| Setting Rings | 1.5748" |
| L | 62 mm |
| b | 12.5 mm |
| c | 0.5 mm |
$545.00
Precise Electronic 3 Point Internal Micrometer
1.575-1.968"/40-50mm
This versatile and self-centering 3 point internal micrometer are designed for accurate and repeatable measurement of internal diameter. Measurement can be taken closed to the bottom of a blind hole or in a deep hole with extension rod. 3 point anvils evenly spaced at 120 degree apart, contact the internal wall surface and find the true alignment with the bore axis for accurate ID measurement.
Calibration procedure:
- 1) Before placing the micrometer into the supplied ring gage, press and hold the on/off/set key to go into the preset mode and use either hold or in/mm/0 key to adjust value as the ring gage diameter and toggle the decimal place by pressing the on/off/set key; Once the ring gage diameter is set in the Preset mode, press and hold the on/off/set key to exit the Preset mode.
- 2) Place the internal micrometer into the supplied ring gage and ensure repeatable contact with the internal bore surface
- 3) While the micrometer still is in the ring gage, press & hold the in/mm/0 key to set the micrometer to its preset value
Features:
- Self-centering 3-point contacts for accurate and repeatable measurement of internal diameter
- Measurement can be taken closed to the bottom of a blind hole or in a deep bore with extension rod
- Supplied with setting rings and extension rod
- Resolution: 0.00005” / 0.001mm
- 3-point contact with tungsten carbide measuring anvils on range above .5";
Stainless steel anvil hardened to HRC 48 on range below .5" - Ratchet thimble
- Preset key allows to preset to any values
- On/Off/Set, Hold key, inch/metric/0 key available
- Furnished in fitted case
Specifications:
| SKU | 303-258 |
| BORE GAGE CATEGORY | Electronic |
| MEASURING RANGE - BORE GAGE | 1.575 - 1.968" / 40 - 50 mm |
| BORE DEPTH | 2.44" |
| SETTING RING | 1.5748" |
| CONTACT POINTS | 3 |
| RESOLUTION | 0.00005" |
| ACCURACY | ±0.0002" / 0.005 mm |
